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<center><a class="noflag" href="gooken.de/index.php" title="Gooken-ssl" target="_top">Gooken - <font color="gray">ssl-encryption</font> for your connection to the search-engine of Gooken </a>
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<a class="noflag" href="gooken/addurl.php" title="addurl" target="_top">Gooken - <font color="gray">addurl</font>: add an URL of a website, even if it is not referring to our main themes</a>
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<a class="noflag" href="#LINK-EXCHANGE" title="code_integration" target="mainsite">Gooken- <font color="gray">code-integration</font> of input-fields for words and text into your menus and websites </a>
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<a class="noflag" href="down.php#searchengine" title="download" target="mainsite">Gooken - <font color="gray">download</font> in the size of around some hundred KB only (some thought it were 100)</a>
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<a class="noflag" href="down.php#werbung" title="download" target="mainsite">Gooken - <font color="gray"> high placement</font> - if you want to place the index for your websites quit on top</a>
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From News&amp;Links ( and all the essential security actions for Linux in this excurs... )
<BR><BR>
<font color="red" style="font-size: 12pt"><B>&quot;2020: The world is lamed&quot;</B></font>, STERN.de, 21.03.2020<BR>
https://www.stern.de/reise/deutschland/tourismus-in-zeiten-der-coronakrise---die-welt-ist-lahmgelegt---sagt-ury-steinweg-von-gebeco-9190342.html
<BR><BR>
<font color="red" style="font-size: 12pt"><B>&quot;Uncanny, mad, horrible&quot;</B></font>, tagesschau.de, 12.09.2020<BR>
Die Busch- und Waldbr&auml;nde in Kalifornien geh&ouml;ren zu den Schlimmsten, die es je gab. Mehr als 12.500 Quadratkilometer sind von den Feuern betroffen. Und nicht nur Kalifornien, die gesamte Westk&uuml;ste der USA brennt.<BR>
https://www.tagesschau.de/ausland/kalifornien-waldbraende-135.html
<BR><BR>
<center><IMG SRC="images/c-s-19-1986.jpg" title="c-s-19-1986" alt="c-s-19-1986" width="90%" align="middle"></center>
<BR><BR>
<font color="red"><B>Null Problemo:</B> <cite>&quot;If you do not know, how to go on, you have two possibilities: either you explode, or you cry for help. / Wenn man nicht mehr weiter wei&szlig;, hat man zwei M&ouml;glichkeiten: entweder man explodiert oder schreit nach Hilfe&quot;</cite></font> (Magnum, TV-Serie, Januar 2016).
<BR><BR>
<font color="red" style="font-size: 12pt"><B>And when even my mother meant (decades ago): &quot;We are no give-away-institution for the germans and no social station of the USA!&quot;, ...</B></font>
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<BR><BR>
<font STYLE="font-size: 14pt" color="black" face="arial, sans-serif">Step 1 - </font><B><font color="green" style="font-size: 12pt">Multiple Protection - The Basic Security Level, report from Gooken.de, the Meta- and local Internet Search Engine with the online excurs &quot;IT-Security&quot;</B></font>
<A name="ALLCATEGORIES">
<BR><BR>
<font color="black" style="font-size:12pt"><B>Gooken-Exkurs: Internal links</B></font>
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<A class="small" href="#SITUATION" title="Ausgangssituation" target="mainsite" onMouseOver="MM_displayStatusMsg('');return document.MM_returnValue">starting situation |</A>
<A class="small" href="#THEORIE" title="Theorie" target="mainsite" onMouseOver="MM_displayStatusMsg('');return document.MM_returnValue">groundworking theory - the security-functions |</A>
<A class="small" href="#ENTSCHEIDENDE_IDEE" title="Theorie" target="mainsite" onMouseOver="MM_displayStatusMsg('');return document.MM_returnValue">The essential idea |</A>
<A class="small" href="#COMPUTER" title="Plattformen" target="mainsite" onMouseOver="MM_displayStatusMsg('');return document.MM_returnValue">ISO-LSB-OpenSource with Changelogs |</A>
<A class="small" href="#SCHOENHEIT" title="Beauty" target="mainsite" onMouseOver="MM_displayStatusMsg('');return document.MM_returnValue">beautiful KDE (4.4.5, mdv, el6: &quot;The cows are prettier than the girls!&quot;) |</A>
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<BR><BR>
<font color="red" style="font-size: 12pt"><B><u>Billion-Dollar-lawsuit(1.000.000.000.000 ) thinkable</u><BR> 
Coronavirus<BR>
Because of the extenuation of the &quot;idiotical Corona-PCR-Tests&quot; from RKI</u><BR>
Billionen-Klage in Amerika gegen Dr. Drosten &amp; RKI &amp; WHO</B></font>, Video, RA Dr. Reiner Fuellmich &#64; youtube.com resp. FB-Profil Pia Berling, 13.09.2020<BR>
Billionenklage (1.000.000.000.000 ) gegen Drosten-RKI-WHO in Amerika, da deutsche Gerichte keinen gesetzlichen Richter haben (4.10), seit 01. Oktober 1950 [1], obwohl im Grundgesetz Artikel 101 steht: Niemand darf sinem gesetzlichen Richter entzogen werden.<BR>
Text und Video (Interview) mit RA Dr. Reiner Fuellmich:<BR>
https://m.youtube.com/watch?feature=youtube.be&amp;v=XZB8gY5MKA0<BR>
Einzelheiten unter siehe News&amp;Links#Alternativen
<BR><BR>
<font color="red" style="font-size: 12pt"><B>Authorities distributed low-graded OP2-masks in comparisan to FFP2-masks - About the qualit&auml;ty of many FFP2-masks:</B></font>
<BR><BR>
<font color="red" style="font-size: 12pt"><B>Millions of faulity masks from german federal government</B></font>, tagesschau.de, 11.06.2021<BR>
Mehrere Bundesl&auml;nder haben Millionen vom Bund bereitgestellte Schutzmasken f&uuml;r die Verwendung gesperrt oder zur&uuml;ckgeschickt. Nach NDR-Informationen fielen sie bei Nachpr&uuml;fungen durch, oder es gab grunds&auml;tzliche Zweifel an der Qualit&auml;t.<BR>
https://www.tagesschau.de/investigativ/ndr/maskenaffaere-spahn-107.html
<BR><BR>
<font color="red" style="font-size: 12pt"><B>Favorable waste disposal<BR>
Spahn aimed to donate millions of unusable masks to homeless and disabled persons</B></font>, epochtimes.de, 05.06.2021<BR>
https://www.epochtimes.de/politik/deutschland,/guenstige-entsorgung-spahn-wollte-millionen-unbrauchbare-masken-an-obdachlose-und-behinderte-verschenken-a3529024.html<BR>
Kritik an Spahn nach Medienbericht: Emp&ouml;rung nach neuen Masken-Vorw&uuml;rfen, tagesschau.de, 14.06.2021, https://www.tagesschau.de/inland/spahn-maskenplaene-101.html
<BR><BR>
<font color="red" style="font-size: 12pt"><B>OP-masks, FFP2, stuff masks - How do they differ?</B></font>, tagesschau.de &#64; wdr.de<BR>
[...] Mask is not mask - there is a grat difference between them;. Masks protect against particle in the air, even aerosols, that means also against small particles in the air. If used right, FFP2-Masks do protect better than stuff masks or OP-masks.<BR>
<font color="red"><B>OP-masks do not filter aerosoles</B></font><BR>
[...] OP-masks do not filter aerosoles. Only if worn well they do protect next persons against droplets<BR>
<font color="red" style="font-size: 12pt"><B>FFP2-masks provide protection for next persons and people using them.</B></font><BR>
The number in the denomination (designaion) refers to the amount of aerosoles masks can filter out as a must. &quot;FFP2-masks have to filter out more than 94 percent and FFP3-maks more than 99 percent test-aerosoles.&quot;, explained the german govermnent institution for drugs and medical products (BfArM) about the tests of masks.<BR>
[...] FFP2-Masken tested by Stiftung Warentest<BR>
<font color="red"><B>In February 2021 the Stiftung Warentest has tested diffeent FFP2-masks. Only the one mask of 3M (&quot;Auro 9320+&quot;) got completely recommended<BR>
What to think about Livinguard-masks</B></font><BR>
<font color="red"><B>Meanwhile they got popular too: face masks manufactured by company Livinguard. Their manufacturer told us in belonging product fast sheet: &quot;Bacteria and viruses can get transfered through droplets and floated particles in the air (aerosoles). Common FFP2-masks do only filterthe droplets and particles. The Livinguard Mask Pro has such filter too. Additionally it protects the wearer as much as his envirionment against infections, by killing 99 percent of all microorganisms upon each filter-layer <BR>
The manufactuer emphasized, that his mask as a real medical face mask certified type 1 does fullfill EN 14683-2019 and CE.<BR>
[...] Stuff masks are even more insecure than OP-masks</B></font><BR>
https://www1.wdr.de/nachrichten/medizinische-masken-op-masken-ffp2-unterschied-lockdown-100.html
<BR><BR>
<font color="red" style="font-size: 12pt"><B>#WE#TOO: Computer - es geht (ging) kaum noch kaputter: Company smashing of Facebook, Googke, Amazon, Microsoft, Intel (Meltdown&amp;Spectre), Apple and many more west-companies multi-times postulated by many organistations and persons</B></font><BR>
Details in future! 
<BR><BR>
<font color="red" style="font-size: 12pt"><B>&quot;More respect for old people&#180;s nurses than for the bosses from industry together&quot;</B></font>, seen in the Facebook-Profil from a Maja Schmidt, 18.01.2021 
<BR><BR>
In year 2015 on Focus Online Ingo Maus meant to the theme &quot;Adobe Security Updates and Frakking&quot;:
<BR><BR>
<font color="red" style="font-size: 12pt"><B>Ingo Maus: &quot;Everything from Ami is bad. Ami go home!!!&quot;</B></font>  We don&#180;t hear this for the first time...
<BR><BR>
<font color="red" style="font-size: 12pt"><B>The history of the pharma cartel</B></font>, uncut-news.sh, 21.03.2021<BR>
15. Mai 1911<BR>
Der Oberste Gerichtshof der USA, der Supreme Court, befindet John Rockefeller und seinen Trust f&uuml;r schuldig der Korruption, illegaler Gesch&auml;ftspraktiken und des organisierten Verbrechens. Als Ergebnis dieser Entscheidung wird der gesamte Rockefeller Standard Oil-Trust - das damals weltgr&ouml;&szlig;te Wirtschaftskonglomerat - <font color="red"><B>dazu verurteilt, zerschlagen zu werden</B></font>. Doch Rockefeller stand bereits h&ouml;her als der Supreme Court und k&uuml;mmert sich gar nicht um dessen Entscheidung.<BR>
1913 ...<BR>
Zur Ablenkung der &Ouml;ffentlichkeit und um dem politischen Druck zu entweichen, der auf ihm und anderen skrupellosen Magnaten lastet, greift Rockefeller auf den Trick der &quot;Philanthropie&quot; zur&uuml;ck: Die illegalen Erl&ouml;se aus seinen Gaunereien werden in die Gr&uuml;ndung der Rockefeller Foundation &uuml;berf&uuml;hrt. Dieser steuerliche Hafen dient fortan dazu, den Gesundheitssektor in den USA strategisch zu &uuml;bernehmen.<BR>
Die Rockefeller Foundation bildet die Frontorganisation f&uuml;r ein neues globales Gesch&auml;ftprojekt von Rockefeller und seinen Komplizen. Das neue Gesch&auml;ftsfeld hei&szlig;t Pharma-Investment-Business. Spenden der Rockefeller Foundation flie&szlig;en blo&szlig; in medizinische Hochschulen und Hospit&auml;ler. So werden diese Institutionen zu Missionaren von eben aufkeimenden Unternehmen: den Herstellern von patentierten, synthetischen Medikamenten.<BR>
Aber es ist auch die Zeit, da die ersten Vitamine entdeckt werden. Alsbald zeichnet sich ab, dass diese nat&uuml;rlichen Molek&uuml;le einen lebenswichtigen Nutzen f&uuml;r die Gesundheit haben und dass sie imstande sind, vielen chronischen Gesundheitsproblemen entgegenzuwirken. Die ersten B&uuml;cher erscheinen, nachtr&auml;glich &uuml;berarbeitet, in welche die j&uuml;ngsten Forschungserkenntnisse &uuml;ber den gesundheitlichen Nutzen von Vitaminen einflie&szlig;en. Die neu entdeckten Molek&uuml;le haben nur einen Nachteil: Sie sind nicht patentierbar!<BR>
Bereits in den ersten Jahren seiner Existenz sieht sich also das Pharma-Investmentgesch&auml;ft mit seinem Ende konfrontiert: Vitamine und andere Mikron&auml;hrstoffe, wom&ouml;glich noch als &ouml;ffentliche Gesundheitsprogramme vorangebracht, w&uuml;rden die ertragreiche Entwicklung jeglicher Gro&szlig;investitionen auf dem Gebiet patentgesch&uuml;tzter Arzneimittel zunichte machen. F&uuml;r das Pharmagesch&auml;ft wird es somit zu einer &Uuml;berlebensfrage, diese unerw&uuml;nschte Konkurrenz seitens der nat&uuml;rlichen Mikron&auml;hrstoffe aus dem Weg zu r&auml;umen.<BR>
1918<BR>
Fortsetzung des Berichts auf News &amp;Links
<BR><BR>
News&amp;Links#Intro: 1981/82: Someone&#180;s (No-)Return
<div class="normaltext">
<BR><BR>
Chief issue IT-security, please notice: Following our excurs, in order to achieve 1000% security for your computer, you must really, really do some work! Keeping your mouth wide open might not be enough here anymore: Although you might run this excurs on your smartphone, it was in main made for the computer to work upon him!
<BR><BR>
<font color="red" style="font-size:12pt"><B>German government<BR>
Payments for extern consultants did increase very much</B></font>, tagesschau.de, 12.03.2021<BR>
Last year German government has paid more than 430 Millionen Euro for company consultants - 46 percent more than the year before. More than the half of the costs were accounted by the interior ministry of the CSU.<BR>
https://www.tagesschau.de/inland/regierungsausgaben-berater-101.html
<BR><BR>
News&amp;Links#Intro: 1981/82: Someone&#180;s (No-)Return
<BR><BR>
<font color="red" style="font-size: 12pt"><B>Corona<BR>
Robert F. <u>Kennedy</u> junior warns against the vaccination<BR>
German! Important!</B></font>, Pia Berling &#64; Facebook &#64; uncut-news.ch, 30.11.2020<BR>
Original video: <font color="red"><B>&quot;It is impossible to produce a vaccine, that is really secure. It will hurt a certain amount of peresons. Governments will order it. What will be the consequences? Independent from the harm of your injury or that of your child, independent from the toxination of its includes, independent from the untrustness of the line protocol or how carelessly a company acts, there is no possiblity to accuse by law, no class action lawsuit, no liablity at all. Noone can accuse it. For its manufacturer&uuml;r it is a goldmine, but medically frightning, no normal vaccine, three spots upon it: ... A shot with three needles, two of them with electrodes, in order to infiltrate its includes throughout the membrans directly into the cells. ... All in all this deals with cell changing, an in cell infiltrating gentherapy, of which noone knows, how gens do get affected, ...<BR> 
... with the aim, to reduce the world population about 15%....
<BR><BR>
<font color="red" style="font-size: 12pt"><B>They (pharmaceutical industry and governments must get stopped! <u>Please distribute this message!</u></B></font>&quot;
<BR><BR>
<cite><font style="font-size: 12pt" color="red"><B>&quot;All people confident with the 80th know, that USA is a criminal state, who takes his superiority ... / Allen mit der Geschichte der vergangenen 80er Jahre vertrauten denkenden Menschen ist doch bekannt, dass die USA ein verbrecherischer Staat ist, der seine &Uuml;bermacht mit ...&quot;</B></font></cite><BR>
www.compact-online.de/us-strategie-weltpolizei-oder-beobachtender-raushalterren, ... </B></font>
<BR><BR>
<font color="red" style="font-size: 12pt"><B>Betrayer&1#8;s getting serious hard to investigate<BR>
Hunderte Spendenmillionen versickern</B></font>, tagesschau.de, 09.07.2019<BR>
Nach Recherchen von Report Mainz werden jedes Jahr Hunderte Millionen Euro an Spendengeldern nicht ordnungsgem&auml;&szlig; verwendet. Die Rechtslage macht es Betr&uuml;gern dabei leicht.<BR>
https://www.tagesschau.de/investigativ/report-mainz/spendenbetrug-101.html
<BR><BR>
<font color="red" style="font-size: 12pt"><B>&quot;I have never been betrayed like that!&quot;<BR>
#34c3: The eavesdropping programs of the secret services</B></font>, netzpolitik.org, 29.01.2018<BR>
&quot;Ich bin noch nie so belogen worden&quot;, sagte Hans-Christian Str&ouml;bele &uuml;ber seine Arbeit im NSA-BND-Untersuchungsausschuss. In einem Gespr&auml;ch mit Constanze Kurz res&uuml;miert der gr&uuml;ne Politiker die Ergebnisse der parlamentarischen Untersuchung.<BR>
https://netzpolitik.org/2018/34c3-die-lauschprogramme-der-geheimdienste/
<BR><BR>
<font color="red" style="font-size: 12pt"><B>Expert about privacy: &quot;I always ask myself, why the people do still make it through&quot;</B></font>, STERN.de, 09.06.2019<BR>
Marc Al-Hames kennt alle Tricks der Werbeindustrie. Im Gespr&auml;ch mit dem Stern erkl&auml;rt er, warum die pl&ouml;tzlichen Datenschutz-Bekenntnisse einiger Konzerne nicht ernstzunehmen sind und was der gr&ouml;&szlig;te Unterschied zwischen Apple und Google in puncto Datenschutz ist.<BR>
[...].&quot;Facebook zum Beispiel hat Privatsph&auml;re nie verstanden und versteht sie auch jetzt nicht.&quot;<BR>
[...] &quot;Umfragen zufolge liest der Gro&szlig;teil der Nutzer keine Gesch&auml;ftsbedingungen und stimmt allen Anfragen zu.&quot;<BR>
https://www.stern.de/digital/online/datenschutz---die-werbe-industrie-kann-uns-ueber-alle-geraete-hinweg-verfolgen--denen-entgeht-nichts--8723748.html
<BR><BR>
From News&amp;Links#Windows and News&amp;Links#NSA&amp;Co.<BR>
<img src="images/haekchen.png" ALT="OK" align="left"><font color="red" style="font-size: 12pt"><B>Allicance: Five Eyes, Nine Eyes, ...<BR>
&quot;We kill people on the base of meta-data&quot;<BR>
Hacking and Eavesdropping</B></font>, netzpolitik.org, 24.02.2020<BR>
https://netzpolitik.org/2020/ist-whatsapp-sicher-genug-fuer-die-diplomatie/<BR>
https://netzpolitik.org/2020/is-whatsapp-safe-for-diplomats/
<BR><BR>
<font color="red" style="font-size:12pt"><B><u>&quot;The biggest crime, the world ever has seen&quot;</u><BR>
Mit Corona-Plandemie f&uuml;r Traumblondine und Pia Berling v&ouml;llig offensichtlich: Geplante totale Kontrolle und totale &Uuml;berwachung zwecks Versklavung und Treiben in den Massensuizid<BR> 
Bezug auf &quot;The Great Reset&quot; von Klaus Schwaab<BR>
Auflistung beteiligter Firmennamen von A bis Z bei Klaus Schwaab in worldeconomy-forum unter Partner (Facebook, Google, Amazon, Morgan, ..., einige Schweizer Banken, SAP, Bosch, Siemens, ..., Personennamen: Jens Spahn, ... ) </B></font>, Pia Berling &#64; Facebook &#64; Miriam Hope &#64; weforum.org, 14.01.2021<BR>
Video<BR>
https://www.weforum.org/paartners/#search<BR>
https://t.me/MiriamHope<BR>
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left"><font color="green" style="font-size: 12pt"><B>Innvoation of Apple<BR>
<u>No tracking anymore</u> - what does it mean?</B></font>, tagesschau.de, 04.28.2021<BR>
What does come new with iOS 14.5?<BR>
https://www.tagesschau.de/wirtschaft/unternehmen/apple-tracking-faq-101.html
<BR><BR>
<font color="red" style="font-size:12pt"><B>... might be simliar to the computer...:</B></font>
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left"><font color="red" style="font-size:12pt"><B><u>According to a study smartphones do share our data each four and a half minute</u></B></font>, uncutnews, 31.03.2021<BR>
https://uncutnews.ch/laut-einer-studie-teilen-smartphones-unsere-daten-alle-viereinhalb-minuten/
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left"><font color="red" style="font-size: 12pt"><B>Android-Studie of Professor Leith: Google-Handies do send away twenty times more data than iPhones</B></font>, CHIP, 04.04.2021<BR>
Android-malware: Howto protect users against fake-updates<BR>
https://www.chip.de/news/Brisante-Android-Studie-enthuellt-Google-Handys-geben-20-Mal-mehr-Daten-weiter-als-iPhones_183434034.html<BR>
https://www.pcwelt.de/news/Android-sammelt-laut-Studie-20-mal-mehr-Daten-als-iOS-11004792.html
<BR><BR>
<font color="red" style="font-size: 12pt"><B>Except from non-profit organziation (that still should be viewed upon in News&amp;Links critically) and some Raspberries, secure tor-relais (entry guards and exit nodes) are serious hard to find!</B></font>
<BR><BR>
<font color="red" style="font-size: 12pt"><B>Digitalcourage e.V.</B></font>, digitalcourage.de<BR>
Since 1987 Digitalcourage e.V. is engaged in basic rights, data (privacy) protection and a livable world in the digital age. We are technique affine, but defend against our democracy getting &quot;given away and sold out&quot;.<BR>
Since year 2000 we confer BigBrotherAwards. Digitalcourage is non-profit, financed by spends and is living from non-profit work. More about our work:<BR>
https://digitalcourage.de<BR>
https://digitalcourage.de/blog/2020/macht-der-digitalkonzerne#10<BR>
Get more to know about Digitalcourage from News&amp;Links too!
<BR><BR>
&quot;... contamination, <font color="red"><B>epidemics</B></font> and fear ...&quot;, from News&amp;Links#Intro, Running Wild (RocknRolf), Hamburg, 1985 
<BR><BR>
<font color="red" style="font-size:12pt"><B>CNN: &quot;Don&#180;t worry, if people die after the vaccination&quot;</B></font> Pia Berling &#64; Facebook &#64; cnn.com, 20.12.2020<BR>
Chrisitine Lagarde: &quot;That must not have to do with the vaccine. Old people do live much too long, and there is a risk for the world economy, something has to be done.&quot;
<BR><BR>
&quot;... contamination, <font color="red"><B>epidemics</B></font> and fear ...&quot;, from News&amp;Links#Intro, Running Wild (RocknRolf), Hamburg, 1985 
<BR><BR>
<font color="red" style="font-size: 12pt"><B>Health<BR>
Asymptomatic Super-Spreader<BR>
Without sterile immunity: Do the vaccines making the corona-situation worse?</B></font>, The Epoch Times, 01.30.2021<BR>
If you want &quot;to win the fight against Corona&quot;, the spreading of the virus has to be prevented. The vaccinations up to now can prevent only partially. Without &quot;sterile immunity&quot; vaccinated ones, that enjoy special rights, can mutate to new asymptomatic and therefore unknown super-spreaders.<BR>
https://www.epochtimes.de/gesundheit/ohne-sterile-immunitaet-verschlimmern-impfungen-die-corona-situation-a3435979.html
<BR><BR>
<font color="red"style="font-size: 12pt"><B>Restrisiko &uuml;ber alle Generationen?<BR>
Kampf gegen Corona<BR>
Geimpft - und dann?</B></font>, tagesschau.de, 01.19.2021<BR>
Die Impfungen gegen Covid-19 sind ein gro&szlig;er Hoffnungstr&auml;ger im Kampf gegen die Pandemie, jedoch kein Allheilmittel. Auch Geimpfte haben ein Restrisiko und m&uuml;ssen sich weiter an Regeln halten.<BR>
https://www.tagesschau.de/inland/faq-corona-impfstoff-113.html
<BR><BR> 
<font color="red" style="font-size: 12pt"><B>&quot;The most german famous inventions are the fun-brakes and the journey-withdrawal-insurance&quot;</B></font>, NDR Talkshow, Kabarettist Vince Ebert, 09.12.2020<BR>
https.//www.facebook.de unter &quot;Unversch&auml;mtheiten&quot;
<BR><BR>
<font color="red" style="font-size: 12pt"><B><u>Man of the future, victims of the past<BR>
1981/82, Someone&#180;s (No-) Return: Someone got elected, ... and the man from the LKA D&uuml;sseldorf can&#180;t bear to look into the future</u></B></font>, Nachtrag News&amp;Links#Intro, interview in &quot;Das Dritte&quot; (WDR), 80er Jahre, Text by Gooken, 11.10.2018<BR>
Buuh,<BR>
puuh, how dizzy he were and bad he went! As he, several decades ago, a high ranked police officer from the LKA in WDR, has wiped his eyes shaking the head in his hands during the interview right before the running camera to the theme  &quot;organized criminality&quot; as he could not bear to look into coming times <i>quit beginning to weep</i> - more than unusual for a high ranked man from the police. The answering of the questions to him got much too difficult for him. Even if god knows wourd rise up expecting us all since 1981/82 - <font color="red"><B>he was not able to speak about it - it wourd be such awful and mean!&quot;</B></font>.<BR>
What is, what is expecting us all, especially future generations, Mr. Police-Officerr, must the police, the state and the citizen capitulate before a high dimensioned, super criminal power, its world of starving bank directors and weeping bailiffs, its unscrupulously banks and companies (resp. cases for the smashing over smashing), corruption, prostitution, marode collapsed states, the over all and everyone high rated Dollar, computer (suneaters), machines and oodles of bogus money printing laser printers, money laundering, Springer press (Bildzeitung), child pornography, Orwell&#180;s Big Brother, Huxley&#180;s beautiful new world, mass of foreign cheap workers,  costs of armament, space traveling and nuclear power, threating plagues and epicemics as once more the business profit and so on and further on? Did, do good and bad exchange?<BR>
<BR><BR>
<font color="red" style="font-size: 12pt"><B>Assemble Entertainment<BR>
The typical american way of life?<BR>
Sabotage, corruption, arms trade up to schwere assassination against all kind of competitives</B></font><BR>
&quot;Pizza Connection 3&quot; for Linux announced<BR>
Der PC-Spiel-Klassiker Pizza Connection bekommt eine Fortsetzung und Linux wird aller Voraussicht nach mit an Bord sein. Das geht aus einer k&uuml;rzlich durch den Publisher &quot;Assemble Entertainment&quot; bekannt gegebenen Meldung hervor.<BR>
Spielszene aus &quot;Pizza Connection 3&quot;<BR>
Pizza Connection stellt ein bereits 1994 durch das deutsche Entwicklerstudio &quot;Cybernetic Corporation&quot; entwickeltes und durch &quot;Software 2000&quot; ver&ouml;ffentlichtes Aufbausimulationsspiel dar, in dem der Spieler eine europaweite Pizzeria-Kette aufbaut. Dazu muss der Spieler einen passenden Raum in einer Stadt finden, dort eine Niederlassung er&ouml;ffnen, Personal schulen und Pizzen ausliefen. Ein grundlegendes Element des Spiels war der Pizza-Editor, der es dem Spieler erlaubte, nicht nur Standardpizzas zu erstellen, sondern auch eigene Kreationen auszuprobieren. Wichtig war dabei nicht nur eine passende Pizza zu erstellen, sondern auch die Geschm&auml;cker der Zielgruppen der verschiedenen Stadtteile zu treffen. <font color="red" style="font-size: 12pt"><B>Ein weiterer wichtiger Aspekt des Spiels stellte das &quot;graue Gesch&auml;ft&quot; dar, das von Sabotage, Bestechungen, &uuml;ber Waffenhandel bis hin zu schweren Anschl&auml;gen auf die Konkurrenz.</B></font> [...] In der Wirtschaftssimulation werden neben den Grundzutaten der Serie einige Neuerungen Einzug halten. &quot;Arbeite dich in einer herausfordernden Kampagne vom einfachen Pizzab&auml;cker in den Stra&szlig;en Roms hoch zum Eigent&uuml;mer der erfolgreichsten Pizza-Kette der Welt! Erschaffe dazu mithilfe des ber&uuml;hmten Pizza Creator deine individuellen Pizza-Kreationen&quot;, so die grobe Beschreibung.<BR>
https://www.pro-linux.de/news/1/24784/pizza-connection-3-f&uuml;r-linux-angek&uuml;ndigt.html
<BR><BR>
<font color="red" style="font-size: 12pt"><B>Book-recension<BR><BR>
They know all about you<BR>
How state and economy eavesdrop your data - and how to protect against it</B></font>, Pia Berling &#64; Facebook &#64; Redline Verlag, The book to the people counting by Franz Kotteder<BR>
They have told it us again and again, but most of us got irritated, did not take the message serious enough or did forget it all to fast.<BR>
This book was published several years ago!
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left"><font color="red" style="font-size: 12pt"><B>Secret Agent boundaries: Five Eyes, Nine Eyes, ...<BR>
&quot;We kill people on the base of metadata&quot;<BR>
Hacking and Eavesdropping</B></font>, netzpolitik.org, 24.02.2020<BR>
https://netzpolitik.org/2020/ist-whatsapp-sicher-genug-fuer-die-diplomatie/<BR>
https://netzpolitik.org/2020/is-whatsapp-safe-for-diplomats/
<BR><BR>
<B>&quot;Linux is a secure operating system&quot; has been the message everywhere. But this was (and is ) not the truth. Linux showed several lacks in security like other operating systems.<BR>
Although Linux provides comfortable, securing filesystems, plenty of updates still have to get installed and configurations be made.<BR>
In this online excurs we, Gooken, aim to configure your Linux secure on the base of recommend lite-time hardware from our data sheed to achieve a paronid secure Linux without too many restrictions for the user. </B>   
<div class="small">
<BR><BR>
<B>IT-Security is the kind of &quot;game&quot;; to reach the highest IT security level as possible. Its aim is to escape from the sun-eating of the evil suneater (&quot;computer&quot;), by mutating him (the suneater resp. &quot;computer&quot;) into a real computer - including its boundarires resp. connections within all his nets... ( do not ask us for all the people having already lost this &quot;game&quot; ...). We&#180;d like to play it in the manner of the popular game &quot;Mensch-&auml;rger-Dich-nicht&quot;: hook by hook :</B>
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left"><font color="green" style="font-size: 12pt"><B>Gooken provides 1000% IT-security: Just follow these green hooks!</B></font>
<BR><BR>
<font color="green" style="font-size: 12pt"><B><u>Lifetime-hardware from our data sheed: <i>mouseclick-fast</i> upon Celeron</u></B></font>
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left"><font color="red" style="font-size: 12pt"><B>Tip from CHIP: Resign from MS Windows</B></font>, CHIP, 18.09.2020<BR>
We do have a special security tipp for you. Whoever wants to protect effectively, says Windows good bye, in order to restrict hackers the room for attacks.<BR>
https://www.chip.de/artikel/Sicherheit-im-Internet-top-5-Tipps-der-NSA_182985028.html
<BR><BR>
<B>From trojaner-board.de # Linux:</B>
<BR><BR>
trojaner-board.de, sitemap17.php: B&Uuml;&Uuml;&Uuml;&auml;&auml;&auml;&auml;&auml;H! The same muck as Win... :(<BR>
trojaner-board.de, sitemap17.php: <B>Where is my rubbish?</B><BR>
...
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left"><font color="red" style="font-size: 12pt"><B>&quot;Thank you, Linux, you have made Microsoft rich!&quot;</B></font><BR>
Hard to install Linux, hard to configure, hard to secure it really up, many updates, not all device drivers, discussable design, changing libraries, unsolved dependencies, missing software for special professional business work...<BR> 
Debian based on the package-manager dpkg, syncatpic and just the for a long time based awful rare feautered, shaby aptitude, while Mandriva awaits with rpm, urpmi, yum and the user-friendly drakconf for administration ... <BR>
System crashed serious hard up to dbus-update from year 2019.<BR>
KDE caused system breakdowns. It got stable for the first time since a python-update in 2016.<BR>
A lot of lacks in security and weak points (exploits) had to be solved.
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left"><font color="red" style="font-size: 12pt"><B>During my last updates few days ago I have noticed the following ... under system - securityt ... each steps one does, goes and went, each side, even outside of the www...., is stored in the background, by date, time and location !</B></font>, Pia Berling &#64; krone.at, 24.11.2020<BR>
Go into the system settings (system control) and deactivate all ticks!<BR>
Then delete under the action history, that is part of a network with the Google account and others!<BR>
But there is still not any gurantee, that your activities won&#180;t be prosecuted completely anymore...  at least one has done something against it!<BR>
My opinion is, that it is a good thing to deactivate the total eavesdropping..  by deactivating Cortana ( Linux-aquivalent to krunner and akonadi -&gt; includes of akonadi through akonaditray) ... (what I all have already made long ago), to put of the cameras too, to use them only, if really needed! ... and further on ...<BR>
https://www.krone.at/2282872
<BR><BR>
But the <u>enourmous advantage</u> of the &quot;reference-highschool-operating-system&quot; UNIX/Linux: opensource, high support with updates, all kind of <u>software of all rubriques and coleur</u>, especially <u>server</u> (like httpd/Apache) and <u>databasis</u> (like MySQL): all inclusive. <B>1000% security can be achieved, as we are going to describe here!</B>
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left"><font color="red"><B>Notice: IP2Location C library <u>enables the user to get the country, region, city, coordinates, ZIP code, time zone, ISP, domain name, connection type, area code, weather info, mobile carrier, elevation and usage type from any IP address or hostname.</u> This library has been optimized for speed and memory utilization. The library contains API to query all IP2Location LITE and commercial binary databases. Users can download the latest LITE database from IP2Location web site using e.g. the included downloader.</B></font><BR>
https://fr2.rpmfind.net
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left"><font color="green" style="font-size: 12pt"><B>You are looking for <u>good (secure anyonymizing) tor nodes</u>, good entry-, middle- and good exit relais, of NGOs from secure countries? Then you are at the right place here and within our section <u>News&amp;Links!</u></B></font>
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left"><B><u>In contrast to the all in all quit compact, a registration requiring Debian</u> Gooken presents a complete, especially a concrete solution for real security in concept on the base of UNIX-Linux-filesystems like ext4, btrfs and reiserfs. A lot of points and links refer to sources from Debian, while they got changed into more concrete methods - following the right security concepts. Also we did not like dpkg much in comparison with rpm same in design, structure and detail for the belonging packet-search-engines debian.org versus rpmfind.net with mirrors like r2.rpmfind.net. Too many clicks have to be made for Debian until a download of a package really starts. Methods sink down in very much hugh-large theory and all its possibilities in Debian. 
<BR><BR>
Gooken&#s points origin in the cheap, economy and exemplary hardware listed in the data-sheed and by LUKS/dm-crypt/cryptsetup encrypted UNIX-/Linux-filesystems, those with useful owner-, group-, and access-rghts). At last an (at this time still not complete) online-(security-)check is possible to check out the browser.<BR>
<BR><BR>
<u><B>UNIX/Linux is a &quot;password-system&quot;. The main idea of UNIX/Linux is the creation of a password-protected account for each in the net communicating program (server or client), the isolation of each account from other ones resp. the setting of belonging access-rights, followed by the configuration of each of such programs (like /etc/httpd.conf for Apache, /etc/squid.conf for Squid and /etc/samba.conf for Samba (LAN) etc.) and the performance of further methods like for the pervention of chrooting by system-configurations and especially sandbox Firejail.
<BR><BR>
Beneath general system-wide configurations the rights for more or less all of the system-administrator root and similar user resp. accounts have to get restricted too, while normal user accounts can even get locked completely. An important restriction for even root (uid 0 and gid 0) is enpossibled especially by firewall Linfw3, that can completely prevent its net-access!</B></u>
<BR><BR>
1000% IT-security: following Gooken always as concrete as possible - not only for Linux, but also for MS Windows and Smartphones (section Smartphones also from left menu) - for Android as much as iPhone!
</B>
<BR><BR>
( This all reminds us inourdays more or less of Trump in the role of the US-president. Many critics against the multiple previous convicted notorious liar have arised and actually do come up, all not feeding concrete enough in the for more then 150 years unchanged state constitution, so that Trump, past maneuvers as the exchange of the judges of the Supreme Court, still was able to beware his role us a legal president of the United States, details see Gooken in section News&amp;Links#Trump ! )
<BR><BR>
<center><IMG src="images/machsgut4.jpg" ALT="Intro" title="C6-KDE-miniprogs" align="middle" width="90%"></center>
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left"><font color="green" style="font-size: 12pt"><B>DIN SPEC 3105<BR>
Open DIN-norm for open hardware</B></font><BR>
https://netzpolitik.org/2020/offene-din-norm-fuer-offene-hardware/
<BR><BR>
Following our excurs, Linux will become a keyword-/password-system!<BR>
<B><u>Get rid of all problems with your computer!</u></B> You won&#180;t have any troubles with your computer and computer-system anymore! This became really possible since 2010 Enterprise Linux resp. &quot;Universal Linux&quot; was released upon the T&Uuml;V Rheinland certified hardware listed in our section data sheed! Only the installation process will make its efforts. Of course you have to update the system with Enterprise Linux:<BR>
<B>Gooken</B> presents you <B>&quot;Universal Linux&quot;</B> especially on the base of the longer than 10 years updated <u><B>Enterprise Linux</B></u> 6, 7 and 8<B>, CentOS C6, C7,. ..</B> ( Fedora Core, RHEL6, CentOS 6 (same for CentOS 7) resp. Scientific Linux 6 resp. 7) and/or resp. additinally the Mandriva-derviates (Mandriva2010.2-2012, Mageia 1-7, Rosa2014.1, 2016.1, <u>PC Linux OS (pclos)</u>) and some Slackware (slack 14.2) and OpenSuSE (Thumbleweed, 15.2, 15.1, 15.0) including KDE-Desktop-Environment (KDE) and other Desktop Environments - the <i>1000% secure made</i> computer operating system, full of surface covering, prototyped, almost rpm-based software, incl. emulators for many programs for other operating systems, together with the belonging everlasting <B>lifetime-hardware</B> running mouseclick-fast upon &quot;Universal Linux&quot; on low power consumption and lowest costs listed in data sheed from left menu - and all quit for free!
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left"><B>gtk3 (el7)</B>: gtk3 (el7, rpm -i --force --nodeps), cairo ( el7, rpm -U --force, cairo-gobject (el7), glib2 (el7, beneath glib2 (el6) by rpm -i --force --nodeps), libepoxy (el6, el7), libxkbcommon (el7, rpm -i --force), fontconfig (el7), fribidi (el7), gdk-pixbuf2 (el7), glib2 (el7), harfbuzz (el7), jasper (el7), jasper-libs (el7), libblkid (el7), libexpoxy (el7), libjpeg-turbo (el7), libpng15 (el7), libmount (el7), uuid (el7), libuuid (el7), libwayland-client (el7), libwayland-curser (el7), libwayland-egl (el7), libxkbcommon (el7), libthai (el7), pango (el7), rest (el7) and zlib (el7). pango (el7) won&#180;t let work drakconf (mdv2010.1), file-roller (el6) and palemoon for example. In this case, keep the old libpango (el6) by resigning from libpango out of pango (el7), same for libgio and libgobject of glib2 (e7) and libgdk_pixbuf of gdk_pixbuf2 (el7). If you have problems installing glib2 and gtk3, enpack the rpms and copy their includes (directories and files) manually into the pregiven directories by the command &quot;cp -axf&quot;.
<BR><BR>
In order to approach CentOS 7 / SL 7 with CentOS 6 / SL6, you might want to install systemd (el7) too...
<BR><BR>
<center><font color="green"><B>Gain your trust back, and gain the trust in you back!</B></font></center>
<BR><BR>
<font style="font-size: 12pt"><B>1000% security for your computer:</B></font><font style="font-size:12pt"><B>05.26.2020, since 2010: Computer without needing any care: (paranoid-) secure and standarded stable computer-system, self-repairing, free from wide restrictions, total free from maintenance, surface covering opensourced software, with emulators and virtual machines of many operating systems, always mouseclick-fast (free from hacker and trojan etc.), most comfortable, endless durable (lifetimed soft- and hardware), power-saving, free from royalities and all in all (quit) for free; presented by Gooken</B></font>
<BR><BR>
<A class="noflag" href="mailto:info&#64;gooken.de?subject=Bankverbindung" title="Bankverbindung" onMouseOver="MM_displayStatusMsg('');return document.MM_returnValue"><img src="images/frwzhlg.jpg" align="left" alt="support" border="0">Gooken - the at times <B>breaking full, large &quot;china restaurant&quot;</B>... Do you want the everlasting peace with your computer as a system (backported Fedora Core (fc): updates from year 2010-2026 resp. <B>lifetime</B>) with covering software (backported too) on powersaving and cheap lifetime-hardware, providing the incredible high security level? Contribute to Gooken for the manufacturing of the (consistent) IT-security-standard! For correspondent please click here!</A>
<BR><BR>
Spend or pay Gooken by PayPal.me :
<BR><BR>
<A href="https://paypal.me/andreas180419" target="_blank" title="PayPal.me">Spend or pay Gooken by Paypal.me: Please click here!</A>
<BR><BR>
Alternatively spend by our bank correspondence see impressum or contact us: You can buy the complete rights of Gooken (over all websides and products) to become its owner for some septrillions per agreement, more details with &quot;News&amp;Links&quot; from left menu!
<BR><BR>
<font color="red" style="font-size: 12pt"><B>EU-finanzierte Cybersecurity-Firma die &quot;anonymes&quot; Schn&uuml;ffeln und Fernsteuerung von Netzger&auml;ten entwickelt</B></font>, uncut-news.ch &#64; rt.com, 16.06.2021<BR>
[...] Die Erstellung und Verwendung des verschl&uuml;sselten Chats ANOM, der im Mittelpunkt der j&uuml;ngsten beh&ouml;rden&uuml;bergreifenden Operation gegen das organisierte Verbrechen stand, wurde als Beispiel angef&uuml;hrt. Die App enthielt einen geheimen Hauptschl&uuml;ssel, der es den Strafverfolgungsbeh&ouml;rden erm&ouml;glichte, Nachrichten im laufenden Betrieb zu entschl&uuml;sseln und aufzuzeichnen.<BR>
&quot;Wir machen uns Sorgen dar&uuml;ber, dass Geheimdienste Hintert&uuml;ren haben… Die meisten Leute denken nicht dar&uuml;ber nach, dass Geheimdienste die App tats&auml;chlich erstellen, um Leute zu fangen&quot;, sagte der <B>CIA-Whistleblower John Kiriakou</B> k&uuml;rzlich in einem Interview mit RT &uuml;ber diese Operation.<BR>
<B>&quot;Ich denke, wir sollten alle einfach davon ausgehen, dass unsere Kommunikation, auch unsere verschl&uuml;sselte Kommunikation, &uuml;berwacht wird,&quot; sagte Kiriakou</B>, der sagte, die Episode war eine ern&uuml;chternde Erinnerung &uuml;ber die Grenzen der Online-Privatsph&auml;re f&uuml;r diejenigen, die naiv zu glauben, digitale Nachrichten sind sicher vor Schn&uuml;ffelei.<BR>
Anfang dieses Jahres aktualisierte die EU ihre Regeln f&uuml;r den Export von Technologien mit doppeltem Verwendungszweck, einschlie&szlig;lich Cyber-&Uuml;berwachungsinstrumenten, um &quot;Menschenrechtsverletzungen und -missbrauch zu verhindern&quot;. Die neuen Vorschriften wurden jedoch von Datenschutzorganisationen als zu schwach&quot; eingestuft, um als Schutzma&szlig;nahme zu dienen.<BR>
Weder das Unternehmen noch die europ&auml;ischen Beh&ouml;rden haben auf den Bericht reagiert.<BR>
Quelle: EU-bankrolled cybersecurity firm develops intrusive tech that allows &#180;anonymous&#180; snooping &amp;remote control of net devices - media<BR>
https://uncutnews.ch/eu-finanzierte-cybersecurity-firma-die-anonymes-schnueffeln-und-fernsteuerung-von-netzgeraeten-entwickelt/
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left"><font color="green" style="font-size: 12pt"> (Planned in future) <B>Vienna, net-communiciaiton: Free from eavesdropping with the help by quantum physics?</B></font>, tagesschau.de, 16.12.2018<BR>
Whoever communicats in the internet with eachother, he leaves tracks within the internet without fail. Research scientists from Vienna invented a new method making communication free from eavesdropping even in larger networks.<BR>
In future the quantum cryptography enables a eavesdrop-free communication in the internet. Researchers from Austria have - following their own descriptions - made the important step. It managed them to keep four members of a network communicate free from eavesdropping. Scientists around Rupert Ursin from the Institution for quantum optics and quantum information of the academia of sciences in Austria introduced their research in the british expert report  &quot;Nature&quot;.<BR>
https://www.tagesschau.de/ausland/quanten-101.html
<BR><BR>
<font color="red" style="font-size: 12pt"><B>Surveillance<BR>
36 millionen Euro: ZITiS builds supercomputer for encryption</B></font>, netzpolitik.org, 16.10.2018<BR>
The hacker-authority ZITiS in Germany intends to buid a supercomputer for the deciphering of encrypted um data. This follows the 36 Millionen Euro lasting draft budget of the authority we ar publishing. ZITiS still searches for state-hacker, while actually only half of the places for this work are staffed.<BR>
German Federal Ministry of Internal State
<BR><BR>
<B><u>Secure method<BR>
End-to-end-encryption is a method popular within application of daily communication technology. This technique has been used in messengers like Signal, WhatsApp or iMessage for years. End-to-ende means communication transfer without any breaks. Transferred contents can only be decrypted and read out at the end points of each communication partner.<BR>
Encryption technique is nothing to argue, it depends on mathematic, a science that is non-ambiguous.</u></B> Wie die Kommunikationsanbieter <B>ProtonMail, Threema, Tresorit und Tutanota</B> in ihrem Gegenstatement auf den Punkt bringen: &quot;Der aktuelle Entwurf der Resolution des EU-Ministerrates beruht auf einem eingeschr&auml;nkten Verst&auml;ndnis der technischen Aspekte von Ende-zu-Ende-Verschl&uuml;sselung. <u>Denn Ende-zu-Ende-Verschl&uuml;sselung ist absolut, Daten sind entweder verschl&uuml;sselt oder nicht.</u><BR>
[...] Obwohl bisher noch nichts entschieden ist, raten Datensch&uuml;tzer:innen und Expert:innen dazu aufmerksam zu bleiben. Es ist zwar noch kein Gesetz im Entwurf, die Annahme der Entschlie&szlig;ung bereitet jedoch einen Weg f&uuml;r einen Entwurf der Kommission. Die zust&auml;ndige EU-Innenkommissarin Ylva Johansson &auml;u&szlig;erte sich zuletzt ambivalent.<BR>
Zwar teilte sie in einem Schreiben EU-Abgeordneten Anfang Januar mit, dass es keine Pl&auml;ne gebe, Verschl&uuml;sselung zu verbieten. Allerdings f&uuml;gte die Kommissarin hinzu, &quot;weiterhin gemeinsam mit den Mitgliedstaaten m&ouml;gliche rechtliche, operative und technische L&ouml;sungen f&uuml;r den rechtm&auml;&szlig;igen Zugang zu solchen Daten zu pr&uuml;fen.&quot;<BR>
https://netzpolitik.org/2021/verschluesselung-sichere-kommunikationsanbieter-warnen-vor-hintertueren/
<BR><BR>
<font color="red" style="font-size: 12pt"><B>Survey of the internet node: DE-CIX sues BND</B></font>, Tagesschau, 22.04.2015<BR>
The BND is taken into response before law for his surveys of the net-node DE-CIX in Frankfurt at Main. The holde of the node is going to sue. Criticizer do also sue the government for making tricks. Arond thre terabit data per second are passed and overworked, an amount of 600 CD-Rom. To the customers count all big internet companies like the Deutsche Telekom, Vodafone and Verizon, more details see Links, section &quot;NSA, GHCQ &amp; Co.&quot;.
<BR><BR>
<font color="red"><B><u>... one more exception of our promise &quot;Gooken 1000% - 1000% IT-security for your computer&quot;</u> grounds in webside code. Although tracking-scripts resp. JavaScript can (and should) be deactivated, information still are and can be stored in local as much as spreaded out into any PHP-MySQL coded databasis. Local isn&#180;t the problem, but nevertheless, for this distribution of information into all kind of foreign databasis, an unusual release of the databasis-passwords is required,<BR>
but we really assume, they do!</B></font>
<BR><BR>
But the exchange of DNS-information, canvas fingerprinting and the storing of the browser-user-agent-specification can be prevented as much as anonymizing proxies do, especially like TOR <u>and</u>/or maybe some VPN (Virtual Private Networking) at last for the anonymization of the IP !
<BR><BR>
An important part for the securty is taken by Linux-filesystems like btrfs and ext4 and our iptables- and ebtables-firewall <B>linfw3</B> !
<BR><BR>
Beneath this we especially want to contribute on our websites to your choise of the right computer-hardware, the securing configuration of UNIX/Linux and <B>the right choice of TOR--Nodes</B> (so called EntryGuards and ExitNodes resp. Relais), in the last case even by the specializing sides News&amp;Links! For more questions and questions of all kind of any matters our secure search engine Gooken wants to do its best.<BR>
Overwhelming, <u><B>already everywhere published floods of information, reports over reports (material) out of the well-known best and very best sources</B></u> within our section News&amp;Links at last gives you one of the best opportunity ever to do something against responsible dangerous instances, more than endangering countries (like especially USA), companies, mandants, clients and persons by name - even by processing right before law against, what already has become deep, deep reality for decades!<BR>  
What our party concerns, please do nothing but notice our general disclaimer!<BR>
So far our short description, the summary of Gooken!</div>
<hr width="100%">
<BR><BR>
<center><font color="red" style="font-size: 12pt">The time <i>before</i> Gooken, time before &quot;Universal Linux 2010&quot;  - Computer <B>&quot;Es geht (ging) kaum noch kaputter&quot;</B></font></center>
<BR><BR>
<font color="red" style="font-size: 9pt"><B>BUUU&auml;&auml;&auml;&auml;&auml;H! This is the same dirt as Win-stupid... :(</B><BR>
<B>where is my rubbish?</B><BR>
<B>Converting to Linux Mint - the screen colors - everything grayed out!</B><BR>
...<BR>
</font>
More of this indeed quit infinite long listing: <BR>
https://www.trojaner-board.de#MAC_and_Linux-Troubleshooting<BR>
News&amp;Links#Computer<BR>
Newsgroup: alt.linux.suse<BR>
Exkurs#Universal_Linux_by_Gooken<BR>
Listing f&uuml;r MS Windows: News&amp;Links#MS_Windows _Troubleshooting
<BR><BR>
<font color="black" style="font-size:12pt"><B>And if, such <B>decades ago</B>, even my own mother meant... / Und wenn <B>vor Jahrzehnten</B> sogar die eigene Mutter zum Thema Maja Schmidt aus Voerde schon meinte    &quot; Wir sind keine <i>Verschenkanstalt</i> der Deutschen und keine <i>Sozialstation</i> der USA !&quot;, dann frage ich mich, ob das eigentlich nicht stimmt.</B></font> 
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left"><font color="red" style="font-size: 12pt"><B>Transport encryption part 3, HTTPS with TLS 1.3 in practice</B></font>, 06.11.18 | author / editorial staff: Filipe Pereira Martins und Anna Kobylinska / Peter Schmitz<BR>
TLS 1.3 promises more security for encrypted HTTPS-connections. Unfortunately the implementation is full of perfidies and suprises.<BR>
However wants to have a secure HTTPS-encryption, does the best to think once again about the TLS-configuration, as good intentions for data protection without modern transport encryption do not make any sense.<BR>
<font color="red"><B>As the vulnerabilities for TLS-protocols up to version 1.2 got explored and known well (see the report &quot;TLS 1.3 - much hot air or a big breakthrough?&quot;)  it seems to be obvious, that snooping (eavesdropping on https-encrypted connections does happen much more often than one likes to accept. TLS 1.3 really helps.</B></font><BR>
All begins with the problem, that total resignment from TLS 1.2-fallback for clients with missing support for TLS 1.3 is no theme for the next time.<BR>
[...] <font color="red"><B>A robust transport encryption has got its own shady sides: malware can get through without noticing.</B></font><BR>
<font color="red"><B>During the use of TLS up to version 1.2 (especially by RSA-Ciphers) IT-experts are abled to examine malefic payloads of the data transfer right before passing through the company data center. The communication was read out by so-called middleboxes, it got deciphered, analyzed and forwarded. With TLS 1.3 this kind of monitoring belongs to the past, as each connection is build-up is by Diffie-Hellman-keys - no chance for the so called &quot;deep-packet inspection&quot;, as the communication can not be deciphered in real-time as before.</B></font><BR>
https://www.security-insider.de/https-mit-tls-13-in-der-praxis-a-714096/
<BR><BR>
<B><i>Mouseclick-fast</i>: Secure surfing with TLS 1.3</B><BR>
Firefox-ESR &gt;= 52.9 : &gt;= Includes of lib64nss3 (mga7, pclos or nss (fc, ...) and libssl3.so.1.1.1d (well-patched openssl-1.1.1d (fc29) or libssl3.so.1.1.1a (certified openssl-1.1.1a, fc27) to /usr/lib64/firefox/libssl3.so (installation directory)
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left"><font color="red" style="font-size: 12pt"><B>We believe, all browser became out of date: Noone&#180t;s more secure and better!<BR>
Tor-Browser for Smartphones, desktop with Firefox (OpenSuSE, SL/CentOS) or Pale Moon (pclos, palemoon.org), both upon Tor?</B></font>
<BR><BR>
But at first we talk about:
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left"><B>Via Browser for Smartphones</B>, legendary:<BR>
<ul>
<li>
Comfortable, secure smartphone-browser, <B><u>just 0.86 MB</u></B> sized apk, version &gt; 4.2.9 from 06.17.2021
<li>
OpenSource, 
<li>
also for elder Smartphones, 
<li>
all needed functions,
<li>
tabs,
<li>
location release and blocking
<li>
user agent switcher,
<li>
pop-up-blocker, 
<li>
adblocker,
<li>
internal filter ( one more adblocker ),
<li>
user definable filter ( ABP-filter-rules )
<li>
importable lists-filter: ABP-EasyList, ...
<li>
importable scripts
<li>
... as a general filter underlayed all filters abvoe for each webseite
<li>
script blocker (ABP: easy list, ...), 
<li>
place for addons/extensions and scripts
<li>
incognito-mode (blocks history and cookies and further more.)
<li>
night mode (fine adjustable darkning)
<li>
More functions: favorites, share, tool box, show page source, ... 
<li>
Quit Browser: Via Browser won&#180;t push news and other things to you. No bother to your android devices
<li>
Mini Browser: Via Browser use much less memory usage on your android devices 
<li>
less RAM-consumption
<li>
Version 4.2.6: well patched code (updated well)
<li>
...
<li>
Critics: Self-descriptions of this browser are in chinese language only.<BR>
It is still not possible to add any proxy. <B>Thence for highest IT-security Tor-browser (torproject.org) Tor Smartphones still is our favorite browser!</B>
<li>
 ...., comfortable and simple adjustments and easy handling<BR>
Download out of the internet or from a PlayStore.<BR>
https://m.apkkure.com/via-browser-fast-light-geek-best-choice/Mark.Via.GpP oder Huawei PlayStore
</ul>
<BR>
<font color="red" style="font-size: 12pt"><B>BSI warns against Firefox &amp;Thunderbird: Updates close several lacks in security</B></font>, CHIP, 19.11.2020<BR>
Mozilla hat mit den aktuellen Updates f&uuml;r den Browser Firefox und den Mail-Client Thunderbird mehrere Sicherheitsl&uuml;cken geschlossen, vor denen das BSI warnt. Wir empfehlen Ihnen dringend, beide Programme m&ouml;glichst bald auf die neueste Version upzudaten.<BR>
https://www.chip.de/news/BSI-warnt-vor-Firefox-und-Thunderbird-Updates-stopfen-gleich-mehrere-Sicherheitsluecken_104405834.html
<BR><BR>
<font color="red" style="font-size: 12pt"><B>Next in-between-update for Firefox 78: Firefox 78.0.2 is ready for downloading</B></font>, CHIP, 09.07.2020<BR>
Erst letzte Woche hatte Mozilla planm&auml;&szlig;ig Firefox 78 zum Download bereitgestellt. Doch es trat eine Nebenwirkung im Zusammenhang mit Suchmaschinen auf, woraufhin die Verteilung gestoppt wurde. Firefox 78.0.1 hatte das Problem behoben. Jetzt steht mit Firefox 78.0.2 das n&auml;chste Zwischen-Update an, das unter anderem ein Problem mit Microsoft Teams behebt. <BR>
https://www.chip.de/news/Firefox-78-gestoppt-Mini-Update-Firefox-78.0.2-ist-da_182759007.html
<BR><BR>
Firefox-ESR-68 (el6, OpenSuSE, ...), Firefox-74, ...
<BR><BR>
Overview firefox-ESR-52.9.0: https://software.opensuse.org/package/firefox-esr<BR>
<img src="images/haekchen.png" ALT="OK" align="left">https://download.opensuse.org/repositories/home:/dliw:/mozilla/openSUSE_Leap_15.1/x86_64/ ( runs upon quit all glibc, requires for el6 resp. glib2 (el6) in contrast to OpenSuSE-Evergreen_11.4: mozilla-nss ( NSS_3.51, OpenSuSE Thumbleweed), mozilla-nspr (OpenSuSE Thumbleweed), nss-softokn (el6), nss-softokn-freebl (el6), eventually a re-linking is required: /lib64/libglib... and /lib64/libgthread with /usr/lib64/firefox/bundled/lib64/libg...5400... : ln -sf /usr/lib64/firefox/bundled/lib64/libg...5400.. /lib64/libg...-2.0.so.0 with /usr/lib64/firefox/bundled and /usr/lib64/firefox/gtk2 out of firefox (el6) like firefox-68.9.0 (el6)). After this, delete the old links out of /lib64: libglib (el6: 2800.8) and libgthread (el6: 2800.8): rm -df /lib64/libglib...2800.8... and rm -df /lib64/libgthread-...2800.8... ! )
<BR><BR>
Mirrors:<BR> 
http://ftp1.nluug.nl/os/Linux/distr/opensuse/repositories/home:/dliw:/mozilla/openSUSE_Leap_15.1/x86_64/<BR>
https://ftp2.nluug.nl/os/Linux/distr/opensuse/repositories/home:/dliw:/mozilla/openSUSE_Leap_15.1/x86_64/<BR>
https://ftp.gwdg.de/pub/opensuse/repositories/home:/dliw:/mozilla/openSUSE_Leap_15.1/x86_64/<BR>
https//ftp.lysator.liu.se/pub/opensuse/repositories/home:/dliw:/mozilla/openSUSE_Leap_15.1/x86_64/<BR>
https://provo-mirror.opensuse.org/repositories/home:/dliw:/mozilla/openSUSE_Leap_15.1/x86_64/<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left">Now this at this time actual firefox (OpenSuSE 15.1, in an increasing amount of MB, each around 50 MB) can always get simple updated:
<BR><BR>
...<BR>
https://download.opensuse.org/repositories/home:/dliw:/mozilla/openSUSE_Leap_15.1/x86_64/firefox-esr-52.9.0-lp151.4.56.x86_64.rpm (03.30.2021)<BR>
...<BR>
https://download.opensuse.org/repositories/home:/dliw:/mozilla/openSUSE_Leap_15.1/x86_64/firefox-esr-52.9.0-lp151.4.44.x86_64.rpm (11.16.2020)<BR>
https://download.opensuse.org/repositories/home:/dliw:/mozilla/openSUSE_Leap_15.1/x86_64/firefox-esr-52.9.0-lp151.4.43.x86_64.rpm (11.15.2020)<BR>
...<BR>
https://download.opensuse.org/repositories/home:/dliw:/mozilla/openSUSE_Leap_15.1/x86_64/firefox-esr-52.9.0-lp151.4.36.x86_64.rpm (09.26.2020)<BR>
...<BR>
https://download.opensuse.org/repositories/home:/dliw:/mozilla/openSUSE_Leap_15.1/x86_64/firefox-esr-52.9.0-lp151.4.31.x86_64.rpm (09.08.2020)<BR>
https://download.opensuse.org/repositories/home:/dliw:/mozilla/openSUSE_Leap_15.1/x86_64/firefox-esr-52.9.0-lp151.4.30.x86_64.rpm (08.30.2020)<BR>
https://download.opensuse.org/repositories/home:/dliw:/mozilla/openSUSE_Leap_15.1/x86_64/firefox-esr-52.9.0-lp151.4.29.x86_64.rpm (08.26.2020, according to firefox-68.12.0)<BR>
...<BR>
https://download.opensuse.org/repositories/home:/dliw:/mozilla/openSUSE_Leap_15.1/x86_64/firefox-esr-52.9.0-lp151.4.27.x86_64.rpm (08.17.2020)<BR>
https://download.opensuse.org/repositories/home:/dliw:/mozilla/openSUSE_Leap_15.1/x86_64/firefox-esr-52.9.0-lp151.4.26.x86_64.rpm (08.15.2020)<BR>
https://download.opensuse.org/repositories/home:/dliw:/mozilla/openSUSE_Leap_15.1/x86_64/firefox-esr-52.9.0-lp151.4.25.x86_64.rpm (08.07.2020)<BR>
...<BR>
https://download.opensuse.org/repositories/home:/dliw:/mozilla/openSUSE_Leap_15.1/x86_64/firefox-esr-52.9.0-lp151.4.23.x86_64.rpm (07.28.2020 - according to firefox-ESR-68.11.0)<BR>
https://download.opensuse.org/repositories/home:/dliw:/mozilla/openSUSE_Leap_15.1/x86_64/firefox-esr-52.9.0-lp151.4.22.x86_64.rpm (07.23.2020)<BR>
https://download.opensuse.org/repositories/home:/dliw:/mozilla/openSUSE_Leap_15.1/x86_64/firefox-esr-52.9.0-lp151.4.21.x86_64.rpm (07.19.2020)<BR>
https://download.opensuse.org/repositories/home:/dliw:/mozilla/openSUSE_Leap_15.1/x86_64/firefox-esr-52.9.0-lp151.4.20.x86_64.rpm (07.18.2020)<BR>
...<BR>
https://download.opensuse.org/repositories/home:/dliw:/mozilla/openSUSE_Leap_15.1/x86_64/firefox-esr-52.9.0-lp151.3.22.x86_64.rpm (07.08.2020 - according to firefox-ESR-68.10.0)<BR>
https://download.opensuse.org/repositories/home:/dliw:/mozilla/openSUSE_Leap_15.1/x86_64/firefox-esr-52.9.0-lp151.3.21.x86_64.rpm (06.20.2020)<BR>
https://download.opensuse.org/repositories/home:/dliw:/mozilla/openSUSE_Leap_15.1/x86_64/firefox-esr-52.9.0-lp151.3.20.x86_64.rpm (06.12.2020)<BR>
https://download.opensuse.org/repositories/home:/dliw:/mozilla/openSUSE_Leap_15.1/x86_64/firefox-esr-52.9.0-lp151.3.19.x86_64.rpm (05.28.2020)<BR>
https://download.opensuse.org/repositories/home:/dliw:/mozilla/openSUSE_Leap_15.1/x86_64/firefox-esr-52.9.0-lp151.3.18.x86_64.rpm (04.28.2020)<BR>
...
<BR><BR>
Alternativ (and it&#180;s total confusing with SuSE quit as usual..):<BR>
http://ftp1.nluug.nl/os/Linux/distr/opensuse/repositories/home:/dliw:/mozilla/openSUSE_Leap_15.1/x86_64/<BR>
Quellcode: https://download.opensuse.org/repositories/home:/dliw:/mozilla/openSUSE_Leap_15.1/src/firefox-esr-52.9.0-lp151.3.18.src.rpm<BR>
https://download.opensuse.org/repositories/home:/steffens:/lvermgeo:/firefox/openSUSE_42.2/x86_64/firefox-esr52-52.9.0-4.14.x86_64.rpm (from 08.03.2019)<BR>
https://download.opensuse.org/repositories/home:/anoncvs/openSUSE_Tumbleweed/x86_64/firefox-esr-52.9.0-3.20.x86_64.rpm (from 05.20.2020, for quit actual glibc only)<BR>
https://download.opensuse.org/repositories/home:/anoncvs/openSUSE_Tumbleweed/x86_64/<BR>
https://ftp1.nluug.nl/os/Linux/distr/opensuse/repositories/home:/dliw:/mozilla/openSUSE_Leap_15.1/x86_64/firefox-esr-52.9.0-lp151.3.20.x86_64.rpm (from 06.12.2020)<BR>
https://download.opensuse.org/repositories/home:/anoncvs/openSUSE_Leap_15.1/x86_64/firefox-esr-52.9.0-lp151.9.1.x86_64.rpm (from 06.02.2020)<BR>
https://download.opensuse.org/repositories/home:/anoncvs/openSUSE_Leap_15.1/x86_64/<BR>
https://download.opensuse.org/repositories/home:/anoncvs/openSUSE_Leap_15.1/x86_64/firefox-esr-52.9.0-lp151.8.1.x86_64.rpm (from 07.09.2019: ( ... how can it be?), glibc &gt;= 2.20)<BR>
<img src="images/haekchen.png" ALT="OK" align="left">http://ftp.pbone.net/mirror/ftp5.gwdg.de/pub/opensuse/repositories/home:/linux4humans:/sle11_software:/firefox/openSUSE_Evergreen_11.4/x86_64/MozillaFirefox-52.9.0-10.2.x86_64.rpm (from 05.15.2019, quit all glibc and up from glib2 (el6))<BR>
seamonkey (el6, Version 2.49 enth&auml;lt aktuell gepatchten FirefoxESR-52.9)<BR>
https://rpm.pbone.net/index.php3/stat/4/idpl/54051369/dir/opensuse_leap_15/com/MozillaFirefox-52.9.0-lp150.5.1.x86_64.rpm.html<BR>
https://rpm.pbone.net/index.php3/stat/4/idpl/55298083/dir/opensuse/com/MozillaFirefox-52.9.0-4.5.x86_64.rpm.html<BR>
Firefox-ESR-52.8.1 (el6, fr2.rpmfind.net)<BR>
<img src="images/haekchen.png" ALT="OK" align="left">
https://ftp.pbone.net/mirror/ftp5.gwdg.de/pub/opensuse/repositories/home:/linux4humans:/sle11_software:/firefox/openSUSE_Evergreen_11.4/x86_64/MozillaFirefox-52.9.0-10.2.x86_64.rpm<BR>
tor (rosa2016.1, el6), Tor-Browser (Firefox-ESR &gt;= 52.9: &gt;= Includes of lib64nss3 (mga7, pclos or nss (fc, ...) and nss-3.41.0 (fc30) with libssl.so.3 to /home/toruser/tor*/Browser*/<BR>
Pale Moon &gt;= 27.3.0: &gt;=: Includes of lib64nss3 (mga7, pclos or nss (fc, ...)  and libssl3.so.1.1.1d (openssl-1.1.1d (fc29)) resp. libssl3.so.1.1.1a (von openssl-1.1.1a, fc27) to /usr/lib64/palemoon/libssl3.so<BR>
<font color="red"><B>Pale Moon, notice: noscript and RequestBlockPolicyContinned do not block many scripts as they should do!</B></font><BR>
/usr/lib64/libcrypto.so.1.1 is linked to /usr/lib64/libcrypto.so.1.1.1a and /usr/lib64/libssl.so.1.1 to /usr/lib64/libssl.so.1.1.1a.
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left"><font color="red" style="font-size: 12pt"><B><u>Contra to this firefox: tls-1.3 is not functioning for the firefox from above on our platform (el6). At this time we can alternatively just recommend Pale Moon working on quit all platforms on the base of Quantum and Gecko. Extensions for Pale Moon even used as the tor-browser, are a real must: secret agent and/or eclipsed moon, JavaScript-toggle-buttom, script-blocker, ABL (for AdblockPlus, ABP) resp. abprime, ehprime: hide elements (any visible webside contents self-pointed out for the election per mouse leading into one more filter-rule for ABL resp abprime, noscript, RequestPolicyBlockContinued, Block Content Download, PermissionsPlus (extends about:permissions and this by now for each website), Pure URL, signTextJS, n-Matrix, CanvasBlocker Legacy, JavaScript-Toggle-Buttom, Decentral Eyes, No Resource URI Leak usw.!</u></B></font>
<BR><BR>
<B><u>Gooken recommends Pale Moon! The for more security firefox-code-reducing, but still comfortable Pale Moon is ready for tls-1.3 all upon minimal system requirements!</u></B>
<BR><BR>
<B>Can I run Firefox extensions in Pale Moon?</B><BR>
Yes, you can, for now. Since version 25 we&#180;ve had the option to install (now called &quot;legacy&quot;) XUL, bootstrapped and Jetpack type Firefox extensions on Pale Moon, despite Pale Moon being (and being identified as) a different browser. Please understand though that there is no guarantee that these extensions will work, and using extensions targeted at a different application is entirely at your own risk and you are pretty much on your own regarding support. <BR>
https://forum.palemoon.org/viewtopic.php?f=46&t=23697
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left">Initialization of the Pale Moon extension &quot;Block Content Download&quot; each new start: in about::config edit /home/user/.mozilla/userprofile/user.js,by changing values of all items like permissions.*.* to the value 3, 3 for images, stylesheets, objects, Scripts, subdocuments and so on, that at least means &quot;<B><u>No third party allowed</u></B>&quot; !
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left">Pale Moon extension: nMatrix<BR>
Point&amp;click to forbid/allow any class of requests made by your browser. Use it to block scripts, iframes, ads, facebook etc.<BR>
nMatrix does also<BR>
Delete blocked cookies<BR>
Delete non-blocked session cookies minutes after the last time they have been used<BR>
Delete local storage content set by blocked hostnames<BR>
Clear browser cache every minutes<BR>
Spoof HTTP referrer string of third-party requests<BR>
Strict HTTPS: forbid mixed content<BR>
Block all hyperlink auditing attempts<BR>
Resolve CNAME records 
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left">Pale Moon extension: Eclipsed Moon<BR>
By: Eurythrace Perseides<BR>
About this add-on<BR>
This add-on/extension is designed to work unobtrusively by using current, well known user agent strings and operating systems to &quot;blend in” with the crowd. The preferred &quot;smart&quot; mode is designed to switch the user agent string only when no external tabs are open except for the home page, if it is an external page. The intent is to be quiet and NOT draw attention by changing the user agent string too frequently or using unique ones. It also offers an anonymity checklist for the browser settings, and has a &quot;smart erase” feature to forget about a site when all open tabs to that site are closed. This is a COMPLETE erasure for that individual site, similar to the Delete History option when closing the browser. ALL PASSWORDS, COOKIES, HISTORY, ETC. WILL BE ERASED FOR THE SITE!<BR>
Test Package<BR>
A test package to verify the operation of the random User Agent generation may be downloaded from here:<BR>
https://addons.palemoon.org/datastore/addon/eclipsedmoon/eclipsedmoon-test.zip<BR>
Once unzipped, the XHTML file should be opened in a Pale Moon&trade; browser that already has the Eclipsed Moon add-on/extension installed. The operating mode of the add-on/extension should be set to &quot;Page&quot; before loading the test XHTML page. The test will then proceed to iterate a default value of 50 times and collect the statistics of the User Agents used for each iteration. Optionally, an iteration count may be passed to the XHTML file via adding a query string to the URI in the form of &quot;?runs=100&quot;. The maximum number of iterations is set to 1000, although the JavaScript file associated with the XHTML file may be edited to change that number.
There is an optional PHP file that may be loaded on a server along with the supporting files so the test may be conducted over the internet rather than on the local computer. This will use a large amount of bandwidth to run the test since each iteration will need to completely reload files from the server. The difference is that using the PHP file collects the User Agent from the HTTP header rather than the window.navigator.userAgent DOM property.<BR>
https://addons.palemoon.org/addon/eclipsedmoon/
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left"><B>Pale Moon extension: Certificate Patrol</B><BR>
<font color="red"><B>&quot;Welcome to Certificate Patrol 2.0. We introduced some improvements, that we should first explain to you.<BR>
Before we even list the details of a certificate, we first show you the certification hierarchy. That is the most important clue for oyou to find out, if you&#180;re being tricked. An intermediate authority can put any text in the certificate, that you would like to see, but it cannot falsify the certificate checksums and its position in the hierarchy. Dangerous certificates are likely to be generated by a long list of authorities belonging to different companies or governments. Genuine ones are likely to be signed directly by a root certificate in your browser or by an intermediate creaated by the same company. All the inbetween cases are likely to be legitimate, but you can&#180;t be sure. We are still taking guesses hsere because we steill don&#180;t know, which root certificates in our browsers are worthy of trust. By keeping your eyes open and observing the patterns, you are a  lot likelier to notice, when you are being attacked. In case of doubt, compare (by telephone) the checksums with somebody, that could not possibly be affected.<BR>
Another important change is, that we now inspect certificates for all parts of webpage, so you may see server names and domains comping up, that you never thourght youwere visiting, just because they host some Javascript or media files.<BR>
It&#180;s also new, that you can reject all new certificate, when you see them.<BR>
That doesn&#180;t mean, that you will be protected from using them, because we don'180;t have that much control over your browser.<BR>
If you don&#180;t trust a site, you still have to close the window yourself. But it maens, that, if you bump into the same certificate again, you will be asked again. You could use this to see, if a certain website always has the same certificate, when you change internet connection. (like open it from work, then from home). Then again, if you store the certificate, you&#180;re even safer, that the certificate is the same.<BR>
Several websites hat the bad habit of using multiple certificates for the same hostname. We consider it a configuration error on their side, but since they insist, you now have a little option of the certificate change pop-up to accept any certificate for the host as long as the issuer, that is the next higher level authority, stays the same. This should help in most cases, although I bet there are some, which are more misconfigured than that.&quot;</B></font>
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left">Initializing Palemoon-security-extension &quot;Block Content Download&quot; each new start: Type &quot;about::config&quot; into the address-line of your browser or edit /home/user/.mozilla/userprofile/user.js, by setting all items permissions.*.* to the value 3 for images, style sheets, objects, scripts, subdocuments (documents) and further on, that means at least onto this value for  &quot;<B><u>no third parties</u></B>&quot; !
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left">Pale Moon security extension and tool resp. utility: Config Comments<BR> 
This security extension from Tools&amp;Utilities instead of Security from palemoon.org explains many items within about:config in detail. As our excurs will make a lot of changes of items within about:config, <B>we like to recommendthis browser extension very much too!</B>
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left">Pale Moon mode gecko (Goanna)  - start in below 15 instead of over 70 seconds - security extension and tool resp. utility called &quot;Expire history by days&quot;<BR> 
This security extension from Tools&amp;Utilities instead of Security from palemoon.org empties the browser-history automatically. Set expire-in-days from value 0 to 1 and, following our observes, Pale Moon starts much, much faster...! The installation of this extension keeps Pale Moon from eavesdropping processes right at the beginning (Pale Moon start) too!
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left">Pale Moon extension: signTextJS<BR>
By: dkeeler&#64;mozilla.com, rbarnes&#64;mozilla.com, vbadev&#64;gmail.com<BR>
About this add-on<BR>
window.crypto.signText is a digital signature technology, that has been available to Firefox users for 20 years. It is used by government and banking sites. It can be used to participate in plebiscites.<BR>
The window.crypto interfaces were removed from Firefox 35 and later releases. An add-on was developed as a stop-gap measure for users; that add-on is deprecated and does not work since Firefox 57, but still work with Pale Moon.<BR>
This fork based on the original signTextJS-0.7.7 add-on by mozkeeler.<BR>
https://addons.palemoon.org/addon/signtextjs/
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left">Pale Moon extension: Modify HTTP Response<BR>
By: Off JustOff<BR>
About this add-on<BR>
Modify HTTP Response is designed to rewrite http response body using search &amp; replace patterns.<BR>
Warning:<BR>
This tool works on low level API and intended for advanced users.<BR>
Incorrect filters can cause browser freeze, hang or loose data.<BR>
Never use filters from untrusted sources or if you don&#180;t understand them.<BR>
https://addons.palemoon.org/addon/modify-http-response/
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left">Pale Moon and Firefox extension: No Resource URI Leak<BR>
Deny resource:// access to web content. We fill the hole to defend against fingerprinting. Very important Firefox privacy. A direct workaround  for bugzilla.la/863246:<BR>
block access to resource:// URIs from web<BR>
block web-exposed subset of chrome:// URIs<BR>
uniformly filter disallowed redirects<BR>
restrict about: pages by default (for paranoids)
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left">Classic Add-ons Archive [External]<BR>
Catalog of classic Firefox add-ons <B>created before WebExtensions <u>apocalypse</u>.</B><BR>
https://addons.palemoon.org/extensions/other/
<BR><BR>
<font color="green"><B>[SOLVED by Gooken: Pale Moon always stops working (halts) for about 30 seconds after getting started ]</B></font><BR>
Enter about:config into the address-line and delete (quit) all values (URL/URI) containing &quot;http://&quot; and &quot;https://&quot;!
<BR><BR>
You don&#180;t like the design of Pale Moon? Beneath an actual version of Pale, extensions, lookout for a theme you like from many ones from palemoon.org! 
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left"><font color="green" style="font-size: 12pt"><B>Pale Moon Extensions: Eventually formulate exceptions for some of them within.</B></font><BR>
You can formulate them for extension Eclipsed Moon (OpenSource from palemoon.org) or SecretAgent (ClosedSource from manufaccturer out of UK) during the setting the browser-user-agent-specific, Noscript, RequestPolicy, n-Matrix as much as within the proxy-settings of Pale Moon. Please notice, that Eclipsed moon still isn&#180;t able to formulate exceptions for single URI (URL). 
<BR><BR> 
<img src="images/haekchen.png" ALT="OK" align="left"><B><u>So nothing has to be done by the administrator as much as user manually in future - all gets automized - as generally possible with UNIX/Linux!</u></B>
<BR><BR>
Designs and styles: Many alternative designs and stylese  for Pale Moon are provided by palemoon.org and other locations.
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left">Create one more profile by about:profiles without many or without all (too many restrictions causing) extensions, whenever some websites get too restricted and you don&#180;t know, how to &quot;reset&quot; belonging extensions from above, in order to get the rights back, by restarting Pale Moon resp. Firefox or by launching a single window for this created alternative profile ( out of about:profiles ).
<BR><BR>
Block annoying cookie-banner (telling us to allow cookies): a browser-add-on cares for less frustration during the surfing online, CHIP, 10.09.2020<BR>
Download Firefox-Erweiterung: I don&#180;t care about cookies f&uuml;r Firefox 3.2.2<BR>
CHIP tested it with: good<BR>
https://www.chip.de/news/Nervige-Cookie-Banner-blockieren-beim-Surfen-so-gehts_148087234.html
<BR><BR>
<font color="red" style="font-size: 12pt"><B>Virusses, trojans, worms, bots: 40 percent of all computers in Germany are &quot;zombies&quot;</B></font>, FOCUS Online, 03.02.2014<BR>
The amount is alarming: 40 Prozent of all PCs in Germany are infected and can be remoted by Cyber-gangster. Once installed, malware opens backdoors for the new one. 
<BR><BR>
<B>All Intel-CPU-generations since Celeron</B><BR>
<B>&quot;We can skim out (eavesdrop) everything&quot;</B>, tagesschau.de, 04.01.2017<BR>
Following a newspaper report the detection of actual lacks in security within plenty of computer chips was also made by researchers from the Technical University Graz in Austria. &quot;We were shocked by ourselves about the functioningt&quot;, said Michael Schwarz from the TU Graz to quot;Tagesspiegel&quot;.<BR>
By this leaks all data could be read out of the computer is getting about. <B>&quot;In principle we can read out everything typed into the computer.&quot;</B> Attackers could gain <B>online banking data</B> or <B>stored passwords</B><BR> &quot;Though for this purpose they have to get logged into or connected with the computer&quot;, restricted Mr. Schwarz.<BR>
https://www.tagesschau.de/ausland/intel-sicherheitsluecke-103.html
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left"><font color="green" style="font-size: 12pt"><B> Huawei P40 Pro: Google does not exist anymore</B></font>, CHIP, 02.04.2020<BR>
[...] ... is a salient smartphone with plenty of improvements...<BR>
https://www.chip.de/test/Huawei-P40-Pro-im-Test_182596289.html
<BR><BR>
From our data sheed (&quot;... still functioning today!&quot;)
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left"><B>Smartphone HUAWEI Y360 (Y360-U61) with accessory and magnetized black leather case and charging device from expert, year 2015, for 79 Euro</B> (I got it from a friend for free...)<BR>
[...]
<BR><BR>
<font color="red"><B>Detailed, precise check: spectre-meltdown-checker (el6) resp. meltdown-spectre-checker (el6)</B></font><BR>
<IMG SRC="images/niue-muenzen.jpg" align="left" alt="niue-muenzen" title="niue-muenzen"><font color="red"><B><u>Solution: The solution is dependent from the security-concept (excurs). Microcode, kernel-version, device drivers and CPU themself might only help partially, that means not help at all and if they help, they only <i>mitigate</i> problems with Meltdown and Spectre:</u></B></font>
<BR><BR>
microcode_ctl ( take the fastest version you can: the faster, the more unrisk the CPU (!); enfastening (rosa2016.1, el8, el6: microcode_ctl-1.17-33.33.el6_10.x86_64.rpm, fc29: ver. 2.1-33, ), we might recommend the mouseclick-fast microcode_ctl (rosa2016.1, el8) past (upon) microcode (el6) getting installed (overwritten el6) by rpm -i --force) or ucode_intel (OpenSuSE, newer rpm for 15.3, 15.2, 15.1) and an actualized kernel-4.20 (pclos) or kernel 4.19 (pclos) or &gt;= 4.21 (kernel 5) (we installed kernel: 5.4.110-pclos past 4.20.13 (pclos1))<BR>
Start microcode_ctl (z.B. in /etc/rc.local): 
<BR><BR>
echo 1 &gt; /sys/devices/system/cpu/microcode/reload<BR>
sh /usr/libexec/microcode_ctl/reload_microcode<BR>
... or by an used processor exploring udev-rule.<BR>
or: microcode_ctl -qu
<BR><BR>
Firewall Linfw3 against Meltdown and Spectre: Set group &quot;nobody&quot; for the group of surfuser (with primary group nobody)  and only allow surfuser with one more group of surfuser named surfgroup for example (instead of nobody) to go online. Linfw3 is able to block even root (UID: root, 0, GID: root, 0). So noone is allowed to go online through Linfw3 else surfuser with group surfgroup (instead of his primary group &quot;nobody&quot;), what prevents device drivers from exchaning data - as in this case caused by Meltdown and Spectre  To go paranoid, to make it even more confusing for kernel and CPU, set all directories and files owned by surfuser to it&#180;s primary group &quot;nobody&quot;.
<BR><BR>
Emulators: virtualbox (MS Windows and other OS), qtemu, qemu (MS Windows, virtual emulators of many operating systems), mingw (the MSWindows-dll) and wine (MS Windows), dosemu-freedos (rosa2014.1, MSDOS, PC-DOS), basiliskII, basilisk (Macintosh), puae and uae (Amiga), hatari (ATARI ST), vice and micro64 (VC64), dosbox, dos2unix (text format converter), yabause (saturn emulator), xroar (dragon 32, 64, Tandy coco emulator), fbzx (Spectrum), caprice (Amstrad CPC), zboy (Nintendo Gameboy),  ...
<BR><BR>
<font color="green" style="font-size: 12pt"><B>Howto use Windows within Linux through Virtualbox</B></font>, PC-WELT.de, 08.05.2019<BR>
Per virtualization it is possible to use software and apps for Windows for Linux too. We show, howto.<BR>
https://www.pcwelt.de/ratgeber/Windows-als-virtuellen-PC-in-Linux-weiternutzen-9790033.html<BR>
Virtualbox (el6, all Linux): VirtualBox-5.2-5.2.28_130011_el6-1.x86_64.rpm 12-Apr-2019 20:25  78M, VirtualBox-6.0-6.0.6_130049_el6-1.x86_64.rpm                           16-Apr-2019 15:58  118M ( or VirtualBox-5.2-5.2.28_130011_Linux_x86.run ) from https://download.virtualbox.org/virtualbox/5.2.28 resp. https://download.virtualbox.org/virtualbox/6.0.6<BR>
and Virtualbox: UserManual.pdf, https://download.virtualbox.org/virtualbox/6.0.6/Oracle_VM_VirtualBox_Extension_Pack-6.0.6-130049.vbox-extpack, https://download.virtualbox.org/virtualbox/6.0.6/VBoxGuestAdditions_6.0.6.iso<BR>
Actual version from March 2020: https://download.virtualbox.org/virtualbox/6.0.18/
<BR><BR>
... r und Ersteller von Technologien zu machen, die mit uns zusammenarbeiten.&quot;<BR>
Bereits letztes Jahr hatte sich Microsoft klar dazu bekannt, trotz Protesten der eigenen Mitarbeiter das US-Milit&auml;r weiter mit seinen Technologien ausr&uuml;sten zu wollen. So bewarb sich der Konzern - genauso wie Amazon - um einen Gro&szlig;auftrag, der die Software des US-Milit&auml;rs komplett &uuml;berholen und auf Cloud-Basis bringen soll. Welcher Konzern den Auftrag erh&auml;lt, ist noch offen. Im Sommer schloss Microsoft einen weiteren Milliarden-Deal ab, um die B&uuml;ros des Pentagon mit seinen Office-Programmen auszustatten.<BR>
[...] Kritiker sehen die Kombination aus Edge-Computing und Milit&auml;r als durchaus gef&auml;hrlich an. So k&ouml;nnten Drohnen in Zukunft auf Basis ihrer KI-Algorithmen selbst die Entscheidung zum Angriff treffen. Google hatte sich wegen solcher Bef&uuml;rchtungen in seiner Belegschaft entschieden, die Zielerkennung von Drohnen nicht weiter zu unterst&uuml;tzen.<BR>
Nadella scheint diese Gefahr durchaus bewusst zu sein. In seiner Rede sprach er auch von der Verantwortung, die KI mit sich bringt. &quot;Wir glauben an verantwortliche KI. Man muss auch die schweren Fragen stellen, nicht nur was ein Computer tun kann - sondern auch, was er tun sollte.&quot; Die Antwort nannte er nicht.<BR>
https://www.stern.de/digital/computer/microsoft-chef-erklaert--warum-windows-und-co--kuenftig-kaum-eine-rolle-spielen-8945156.html
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left"><font style="font-size: 12pt"><B>Bastille: Full-automatic IT-security for UNIX / Linux per mouseclick?</B></font>, fr2.rpmfind.net<BR>
&quot;Bastille is a system hardening / lockdown program which enhances the security of a Unix host. It configures daemons, system settings and firewalls to be more secure. It can shut off unneeded services and r-tools, like rcp and rlogin, and helps create &quot;chroot jails&quot;, that help limit the vulnerability of common Internet services like Web services and DNS. This tool currently hardens Red Hat Enterprise Linux, Legacy, and Fedora Core, as well as Debian, SUSE, Gentoo, Mandriva, Ubuntu, Mac OS X, and HP-UX. If run in the preferred Interactive mode, it can teach you a good deal about Security while personalizing your system security state. If run in the quicker Automated mode, it can quickly tighten your machine, but not nearly as effectively (since user/sysadmin education is an important step!) Bastille can also assess the state of a system, which may serve as an aid to security administrators, auditors and system administrators, who wish to investigate the state of their system&#180;s hardening without making changes to such. To run: -bastille [(-b|-c|-r|-x|--assess|--assessnobrowser)] -b : use a saved config file to apply changes directly to system -c : use the Curses (non-X11) GUI -r : revert Bastille changes to original file versions (pre-Bastille) -x : use the Perl/Tk (X11) GUI --assess : use the assessment functionality, viewing results in a browser --assessnobrowser: use the assessment functionality without a browser.&quot;<BR>
https://fr2.rpmfind.net/linux/rpm2html/search.php?query=Bastille&submit=Search+...
<BR><BR>
<B>From this excurs</B>
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left"><font style="font-size: 12pt"><B>Forbidden good?<BR>
<BR><BR>
Firefox (64 Bit) 74.0 Final<BR>
Free download now from CHIP: the brand actual final version of Firefox 74.0.<BR>
CHIP test result: <B>Very good</B><BR>
https://www.chip.de/news/Browser-im-Maerz-2020-Firefox-stuerzt-ab_169898532.html
<BR><BR>
Firefox-ESR-52.9.0-Extensions: quit complete filtering of tracking-scripts by ABP, RequestPolicy, noscript and our ff-ESR-security-settings through user.js (from Kai Raven.de and other authors resp. see further below)</B></font><BR>
<img src="images/haekchen.png" ALT="OK" align="left">https://download.opensuse.org/repositories/home:/dliw:/mozilla/openSUSE_Leap_15.1/x86_64/firefox-esr-52.9.0-lp151.3.18.x86_64.rpm (from 04.28.2020), requires (for el6): mozilla-nss (OpenSuSE Thumbleweed, libfreebl3 (OpenSuSE Thumbleweed), libsoftokn3 (OpenSuSE Thumbleweed)<BR>
<img src="images/haekchen.png" ALT="OK" align="left">Respective the top-actual version of FirefoxESR-52.9.0 out of the directory: https://download.opensuse.org/repositories/home:/dliw:/mozilla/openSUSE_Leap_15.1/x86_64/<BR>
https://ftp.pbone.net/mirror/ftp5.gwdg.de/pub/opensuse/repositories/home:/linux4humans:/sle11_software:/firefox/openSUSE_Evergreen_11.4/x86_64/MozillaFirefox-52.9.0-10.2.x86_64.rpm (from 02.15.2019)<BR>
<img src="images/haekchen.png" ALT="OK" align="left">seamonkey (el6, this version 2.49 includes the actual patched firefox-52.9)<BR>
https://rpm.pbone.net/index.php3/stat/4/idpl/54051369/dir/opensuse_leap_15/com/MozillaFirefox-52.9.0-lp150.5.1.x86_64.rpm.html<BR>
https://rpm.pbone.net/index.php3/stat/4/idpl/55298083/dir/opensuse/com/MozillaFirefox-52.9.0-4.5.x86_64.rpm.html<BR>
FirefoxESR-52.8.1 (el6, fr2.rpmfind.net)
<BR><BR>
<B>Attention! The installation-order of some of the following Firefox-extensions is a not unimportant point: ABP (by the (*-wildcard-based) security-filter-rule &quot;forbidden is, what is not (explicit) allowed&quot;, details in future from further below) and/or uBlock resp. ABL for Pale Moon) right before RequestPolicy before Noscript (or uMatrix) before PrivacyBadger before CanvasBlocker!</B>
<BR><BR>
Notice: ( The last Firefox-extension we installed, &quot;goalkeeper&quot;) Privacy Badger from the switzer civil rights organization EFF as the in our order last installed extension does not, as we hope - except facebook-widgets - block many tracking-scripts, even if single marked scripts turned from green (allow) to red (block): Listed previous installed script-blockers did already do their best.<BR>
privacybadger.org: [...] Although we like Disconnect, Adblock Plus, Ghostery and similar products, none of them are exactly what we were looking for. In our testing, all of them required some custom configuration to block non-consensual trackers. Several of these extensions have business models that we weren&#180;t entirely comfortable with. And EFF hopes that by developing rigorous algorithmic and policy methods for detecting and preventing non-consensual tracking, we&#180;ll produce a codebase that could in fact be adopted by those other extensions, or by mainstream browsers, to give users maximal control over who does and doesn&#180;t get to know what they do online.
How does Privacy Badger work?<BR>
When you view a webpage, that page will often be made up of content from many different sources. (For example, a news webpage might load the actual article from the news company, ads from an ad company, and the comments section from a different company that&#180;s been contracted out to provide that service.) Privacy Badger keeps track of all of this. If as you browse the web, the same source seems to be tracking your browser across different websites, then Privacy Badger springs into action, telling your browser not to load any more content from that source. And when your browser stops loading content from a source, that source can no longer track you.<BR>
Voila!<BR>
At a more technical level, Privacy Badger keeps note of the &quot;third party&quot; domains that embed images, scripts and advertising in the pages you visit. Privacy Badger looks for tracking techniques like uniquely identifying cookies, local storage &quot;supercookies,” first to third party cookie sharing via image pixels, and canvas fingerprinting. If it observes a single third-party host tracking you on three separate sites, Privacy Badger will automatically disallow content from that third-party tracker.<BR>
In some cases a third-party domain provides some important aspect of a page&#180;s functionality, such as embedded maps, images, or stylesheets. In those cases Privacy Badger will allow connections to the third party but will screen out its tracking cookies and referrers (these hosts have their sliders set to the middle, &quot;cookie block” position).<BR>
https://privacybadger.org/#What-is-Privacy-Badger
<BR><BR>
<font color="red" style="font-size: 12pt"><B>Electronic Frontier Foundation ( ff-extension Privacy Badger and other ones.) against mass surveillance and eavedropping trough NSA &amp; Co.<BR>
USA: Erneut Klage gegen Massen&uuml;berwachung durch NSA abgewiesen</B></font>, netzpolitik.org, 11.05.2019<BR>
Seit Jahren k&auml;mpft die Electronic Frontier Foundation vor Gerichten gegen die Massen&uuml;berwachung durch den US-Geheimdienst NSA. Nun hat ein Bundesrichter eine Klage aus dem Jahr 2008 abgewiesen: Um die nationale Sicherheit zu sch&uuml;tzen, m&uuml;sse ein m&ouml;gliches &Uuml;berwachungsprogramm geheim bleiben.<BR>
https://netzpolitik.org/2019/usa-erneut-klage-gegen-massenueberwachung-durch-nsa-abgewiesen/
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left"><font color="red" style="font-size: 12pt"><B><u>The failure: As it can be seen from the key-lock left beneath the addressline, the encryption with the new TLS 1.3 is not possible on our system (el6) for mentioned firefox (52.9), either just weak or even unencrypted!</u><BR>
What did happen to this firefox on OpenSuSE under all the patches? Actually we can only recommend the browser Pale Moon with quit the same extensions: secret agent and/or eclipsed moon, ABL (for AdblockPlus, ABP), noscript, RequestPolicyBlockContinued, Block Content Download, n-Matrix, CanvasBlocker, JavaScript-Toggle-Buttom, script-blocker, about:config-explainer, HTTPS enforcer, Decentral Eyes and further on, at last again the &quot;goalkeeper&quot; Privacy Badger made by the non-profit Electronic Fourier Foundation (EFF).</B></font>
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left">Pale Moon extension: n-Matrix<BR>
Add following rules from temporary to permanent into the dashboard of n-Matrix:<BR>
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left">Palemoon extension nMatrix<BR>
To go sure, add the follwoing rules from temporary to permanent within the Dashboard of n-Matrix:<BR>
https-strict: * true<BR>
https-strict: behind-the-scene false<BR>
matrix-off: about-scheme true<BR>
matrix-off: chrome-extension-scheme true<BR>
matrix-off: chrome-scheme true<BR>
matrix-off: moz-extension-scheme true<BR>
matrix-off: opera-scheme true<BR>
matrix-off: wyciwyg-scheme true<BR>
<B>no-workers: * true<BR>
referrer-spoof: * true<BR>
referrer-spoof: behind-the-scene false<BR>
 * * block<BR>
* * css allow<BR>
* * frame block<BR>
* * image allow<BR>
* * script block<BR>
* * xhr block<BR>
* * other block<BR>
* 1st-party * allow<BR>
* 1st-party frame allow</B><BR>
afterdawn.dk www.afterdawn.dk script block<BR>
...
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left">Pale Moon extension: Block Content Downloader<BR>
Initialization Palemoon extension &quot;Block Content Download&quot; each newstart of Pale Moon: through typing in about::config into the address-bar or editing /home/user/.mozilla/userprofile/user.js to set all or quit all entries named permissions.*.* up or down to 3, where 3 at least stands for &quot;<B><u>Forbid third-parties</u></B>&quot; refering to images, objects, scripts, documents and so on !
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left">Pale Moon extension: Eclipsed Moon<BR>
By: Eurythrace Perseides<BR>
About this add-on<BR>
This add-on/extension is designed to work unobtrusively by using current, well known user agent strings and operating systems to &quot;blend in” with the crowd. The preferred &quot;smart&quot; mode is designed to switch the user agent string only when no external tabs are open except for the home page, if it is an external page. The intent is to be quiet and NOT draw attention by changing the user agent string too frequently or using unique ones. It also offers an anonymity checklist for the browser settings, and has a &quot;smart erase” feature to forget about a site when all open tabs to that site are closed. This is a COMPLETE erasure for that individual site, similar to the Delete History option when closing the browser. ALL PASSWORDS, COOKIES, HISTORY, ETC. WILL BE ERASED FOR THE SITE!<BR>
Test Package<BR>
A test package to verify the operation of the random User Agent generation may be downloaded from here:<BR>
https://addons.palemoon.org/datastore/addon/eclipsedmoon/eclipsedmoon-test.zip<BR>
Once unzipped, the XHTML file should be opened in a Pale Moon&trade; browser that already has the Eclipsed Moon add-on/extension installed. The operating mode of the add-on/extension should be set to &quot;Page&quot; before loading the test XHTML page. The test will then proceed to iterate a default value of 50 times and collect the statistics of the User Agents used for each iteration. Optionally, an iteration count may be passed to the XHTML file via adding a query string to the URI in the form of &quot;?runs=100&quot;. The maximum number of iterations is set to 1000, although the JavaScript file associated with the XHTML file may be edited to change that number.
There is an optional PHP file that may be loaded on a server along with the supporting files so the test may be conducted over the internet rather than on the local computer. This will use a large amount of bandwidth to run the test since each iteration will need to completely reload files from the server. The difference is that using the PHP file collects the User Agent from the HTTP header rather than the window.navigator.userAgent DOM property.<BR>
https://addons.palemoon.org/addon/eclipsedmoon/
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left">Pale Moon extension: signTextJS<BR>
By: dkeeler&#64;mozilla.com, rbarnes&#64;mozilla.com, vbadev&#64;gmail.com<BR>
About this add-on<BR>
window.crypto.signText is a digital signature technology that has been available to Firefox users for 20 years. It is used by government and banking sites. It can be used to participate in plebiscites.<BR>
The window.crypto interfaces were removed from Firefox 35 and later releases. An add-on was developed as a stop-gap measure for users; that add-on is deprecated and does not work since Firefox 57, but still work with Pale Moon.<BR>
This fork based on the original signTextJS-0.7.7 add-on by mozkeeler.<BR>
https://addons.palemoon.org/addon/signtextjs/
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left">Pale Moon extension: Modify HTTP Response<BR>
By: Off JustOff<BR>
About this add-on<BR>
Modify HTTP Response is designed to rewrite http response body using search &amp; replace patterns.<BR>
Warning:<BR>
This tool works on low level API and intended for advanced users.<BR>
Incorrect filters can cause browser freeze, hang or loose data.<BR>
Never use filters from untrusted sources or if you don&#180;t understand them.<BR>
https://addons.palemoon.org/addon/modify-http-response/
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left">Classic Add-ons Archive [External]<BR>
Catalog of classic Firefox add-ons <B>created before WebExtensions apocalypse.</B><BR>
https://addons.palemoon.org/extensions/other/
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left">uMatrix (uM, https://github.com/gorhill/uMatrix/releases/download/1.4.1b6/uMatrix_1.4.1b6.firefox.signed.xpi) or seamonkey-noscript (5.1.9 for ff52-ESR from February 2020, includes the xpi-install-file) or<BR>
mozilla-noscript (5.1.8.6, 5.1.8.5, 5.1.7-1, fc, el7, el6, fr2.rpmfind.net or mozilla.org or http://ftp.pbone.net/mirror/archive.fedoraproject.org/fedora/linux/updates/25/armhfp/Packages/m/mozilla-noscript-5.1.7-1.fc25.noarch.rpm),  https://rpm.pbone.net/index.php3/stat/4/idpl/54125427/dir/rawhide/com/mozilla-noscript-2.6.8.36-1.171.noarch.rpm.html, vom 16.11.2018 (patched 171 times, therefore the recommended version)<BR>
<img src="images/haekchen.png" ALT="OK" align="left">mozilla-adblockplus (-2.9.1-27 fc, el7, el6 or mozilla.org), https://fr2.rpmfind.net/linux/fedora-secondary/releases/29/Everything/i386/os/Packages/m/mozilla-adblockplus-2.9.1-4.fc29.noarch.rpm, https://fr2.rpmfind.net/linux/epel/6/x86_64/Packages/m/mozilla-adblockplus-2.6.6-1.el6.noarch.rpm<BR>
<img src="images/haekchen.png" ALT="OK" align="left">mozilla-requestpolicy (-1.0-0.22.20171019git633302 fc27 from 02.08.2020 / 08.02.2020, el6, rpmfind.net or mozilla.org, you still have to copy it from /usr/share/mozilla/extensions/ to /home/surfuser/.mozilla/extensions/), https://fr2.rpmfind.net/linux/fedora/linux/releases/29/Everything/x86_64/os/Packages/m/mozilla-requestpolicy-1.0-0.22.20171019git633302.fc29.noarch.rpm, https://fr2.rpmfind.net/linux/epel/6/x86_64/Packages/m/mozilla-requestpolicy-1.0-0.19.20171019git633302.el6.noarch.rpm<BR>
mozilla-https-everywhere (fc, el6 or mozilla.org), https://fr2.rpmfind.net/linux/fedora/linux/updates/29/Everything/x86_64/Packages/m/mozilla-https-everywhere-2019.11.7-1.fc29.noarch.rpm, https://fr2.rpmfind.net/linux/epel/6/x86_64/Packages/m/mozilla-https-everywhere-2019.11.7-1.el6.noarch.rpm<BR>
firefox-ublock_origin (alt1, pkgs.org, mozilla.org)<BR>
<img src="images/haekchen.png" ALT="OK" align="left">CanvasBlocker (mozilla.org, against Canvas Fingerprinting)<BR>
<img src="images/haekchen.png" ALT="OK" align="left">CookieController (mozilla.org, part of Jondofox)<BR>
Private Tab (mozilla.org)<BR>
<img src="images/haekchen.png" ALT="OK" align="left">RefControl (mozilla.org, Referer Control)<BR>
<img src="images/haekchen.png" ALT="OK" align="left">UserAgentSwitcher (mozilla.org)<BR>
<img src="images/haekchen.png" ALT="OK" align="left">Link Redirect Fixer (mozilla.org)<BR>
Link_Cleaner (mozilla.org)<BR>
<img src="images/haekchen.png" ALT="OK" align="left">secretagent (anonymizing useragents; extension from palemoon.org)<BR>
<img src="images/haekchen.png" ALT="OK" align="left">CSS Exfil Protection by Mike Gualtieri ( xpi from mozilla.org, https://addons.cdn.mozilla.net/user-media/addons/931864/css_exfil_protection-1.0.17-an+fx.xpi )
<BR>
TrackMeNot (xpi), Firefox extension to protect web habits from tracking and profiling, protect against data profiling by search engines, <cite>&quot;TrackMeNot is a lightweight browser extension that helps protect web searchers from surveillance and data-profiling by search engines. It does so not by means of concealment or encryption (i.e. covering one&#180;s tracks), but instead by the opposite strategy: noise and obfuscation. With TrackMeNot actual web searches, lost in a cloud of false leads, are essentially hidden in plain view. User-installed TrackMeNot works with Firefox and Chrome browsers, integrates with all popular search engines and requires no 3rd-party servers or services. TrackMeNot runs as a low-priority background process, that periodically issues randomized search-queries to popular search engines, e.g., AOL, Yahoo!, Google, and Bing. It hides users&#180; actual search trails in a cloud of &#180;ghost&#180; queries, significantly increasing the difficulty of aggregating such data into accurate or identifying user profiles. TrackMeNot serves as a means of amplifying users&#180; discontent with advertising networks, that not only disregard privacy, but also facilitate the bulk surveillance agendas of corporate and government agencies, as documented recently in disclosures by Edward Snowden and others. To better simulate user behavior TrackMeNot uses a dynamic query mechanism to &#180;evolve&#180; each client (uniquely) over time, parsing the results of its searches for &#180;logical&#180; future query terms with which to replace those already used.<BR>
Public awareness of the vulnerability of searches to systematic surveillance and logging by search engine companies was initially raised in the wake of a case, initiated August 2005, in which the United States Department of Justice (DOJ) issued a subpoena to Google for one week&#180;s worth of search query records (absent identifying information) and a random list of one million URLs from its Web index. This was cited as part of its defense of the constitutionality of the Child Online Protection Act (COPA). When Google refused, the DOJ filed a motion in a Federal District Court to force compliance. Google argued that the request imposed a burden, would compromise trade secrets, undermine customers&#180; trust in Google, and have a chilling effect on search activities. In March 2006, the Court granted a reduced version of the first motion, ordering Google to provide a random listing of 50,000 URLs, but denied the second motion, namely, the request for search queries.<BR>
While viewed from the perspective of user privacy this seems a good outcome, yet it does bring to light several disquieting points. First, from court documents we learn that AOL, Yahoo!, and Microsoft have complied with the government&#180;s request, though details are not given. Second, we must face the reality that logs of our online searches are in the hands of search companies and can be quite easily linked to our identities. Thirdly, it is clear we have little idea of, or say in, what can be done with these logs. While, in this instance, Google withheld such records from the Government, it would be foolish to count on this outcome in the future. Public awareness of the vulnerability of searches to systematic surveillance and logging by search engine companies, was initially raised in the wake of a case, initiated August 2005, in which the United States Department of Justice (DOJ) issued a subpoena to Google for one week&#180;s worth of search query records (absent identifying information) and a random list of one million URLs from its Web index. This was cited as part of its defense of the constitutionality of the Child Online Protection Act (COPA). When Google refused, the DOJ filed a motion in a Federal District Court to force compliance. Google argued that the request imposed a burden, would compromise trade secrets, undermine customers&#180; trust in Google, and have a chilling effect on search activities. In March 2006, the Court granted a reduced version of the first motion, ordering Google to provide a random listing of 50,000 URLs, but denied the second motion, namely, the request for search queries.<BR>
While viewed from the perspective of user privacy this seems a good outcome, yet it does bring to light several disquieting points. First, from court documents we learn that AOL, Yahoo!, and Microsoft have complied with the government&#180;s request, though details are not given. Second, we must face the reality that logs of our online searches are in the hands of search companies and can be quite easily linked to our identities. Thirdly, it is clear we have little idea of, or say in, what can be done with these logs. While, in this instance, Google withheld such records from the Government, it would be foolish to count on this outcome in the future. <BR>
TrackMeNot is user-installed and user-managed, residing wholly on users&#180; system and functions without the need for 3rd-party servers or services. Placing users in full control is an essential feature of TrackMeNot, whose purpose is to protect against the unilateral policies set by search companies in their handling of our personal information. We have developed TrackMeNot as an immediate solution, implemented and controlled by users themselves. It fits within the class of strategies, described by Gary T. Marx, whereby individuals resist surveillance by taking advantage of blind spots inherent in large-scale systems1. TrackMeNot may not radically alter the privacy landscape but helps to place a particularly sensitive arena of contemporary life back in the hands of individuals, where it belongs in any free society.
<BR><BR>
Special thanks to the NYU Dept of Computer Science, the Media Research Lab, the Mozilla Foundation, Missing Pixel, the Portia Project, Babelzilla, Ernest Davis, Michael Zimmer, John Fanning, and Robb Bifano.&quot;</cite><BR> 
Details and installation from<BR>
https://www.cs.nyu.edu/trackmenot/, https://trackmenot.io
<BR><BR>
Privacy Badger - <cite>&quot;Privacy Bader - How does Privacy Badger work?<BR>
When you view a webpage, that page will often be made up of content from many different sources. (For example, a news webpage might load the actual article from the news company, ads from an ad company, and the comments section from a different company that&#180;s been contracted out to provide that service.) Privacy Badger keeps track of all of this. If as you browse the web, the same source seems to be tracking your browser across different websites, then Privacy Badger springs into action, telling your browser not to load any more content from that source. And when your browser stops loading content from a source, that source can no longer track you. Voila!<BR>
At a more technical level, Privacy Badger keeps note of the &quot;third party&quot; domains that embed images, scripts and advertising in the pages you visit. Privacy Badger looks for tracking techniques like uniquely identifying cookies, local storage &quot;supercookies,&quot; first to third party cookie sharing via image pixels, and canvas fingerprinting. If it observes a single third-party host tracking you on three separate sites, Privacy Badger will automatically disallow content from that third-party tracker.<BR>
In some cases a third-party domain provides some important aspect of a page&#180;s functionality, such as embedded maps, images, or stylesheets. In those cases Privacy Badger will allow connections to the third party but will screen out its tracking cookies and referrers (these hosts have their sliders set to the middle, &quot;cookie block” position).<BR>
Does Privacy Badger account for a cookie that was used to track me even if I deleted it?
Yes. Privacy Badger keeps track of cookies that could be used to track you and where they came from, even if you frequently clear your browser&#180;s cookies. 
Does Privacy Badger still work when blocking third-party cookies in the browser?<BR>
When you tell your browser to deny third-party cookies, Privacy Badger still gets to learn from third parties trying to set cookies via HTTP headers (as well as from other tracking techniques such as pixel cookie sharing and canvas fingerprinting). Privacy Badger no longer gets to learn from cookies or HTML5 local storage being set via JavaScript, however. So, Privacy Badger still works, it&#180;ll just learn to block fewer trackers. Clearing history or already-set cookies shouldn&#180;t have any effect on Privacy Badger. <BR>
<font color="red"><B>How does Privacy Badger handle social media widgets?</B></font><BR>
Social media widgets (such as the Facebook Like button, Twitter Tweet button, or Google +1 button) often track your reading habits. Even if you don&#180;t click them, the social media companies often see exactly which pages you&#180;re seeing the widget on. Privacy Badger includes a feature imported from the ShareMeNot project which is able to replace the widgets with a stand-in version, so that you can still see and click them. You will not be tracked by these replacements unless you explicitly choose to click them. Privacy Badger currently knows how to replace the following widgets if they are observed tracking you: AddThis, Facebook, Google, LinkedIn, Pinterest, Stumbleupon, and Twitter. (The source code for these replacements is here; pull requests are welcome.)<BR>
Note, that Privacy Badger will not replace social media widgets unless it has blocked the associated tracker. If you&#180;re seeing real social media widgets, it generally means that Privacy Badger hasn&#180;t detected tracking from that variant of the widget, or that the site you&#180;re looking at has implemented its own version of the widget. To avoid confusion, the replacement widgets are marked with the Privacy Badger badge next to the button. To interact with a replacement widget, simply click on it. Depending on the widget, Privacy Badger will either send you directly to the appropriate sharing page (for example, to post a tweet) or it will enable and load the real social widget (for example, the Facebook Like button, with personalized information about how many of your friends have &quot;liked&quot; the page). In the second case, you will still need to interact with the real widget to &quot;like&quot; or share the page.&quot;</cite><BR>
https://privacybadger.org/#How-does-Privacy-Badger-work<BR>
https://privacybadger.org/<BR>
https://www.eff.org/files/privacy-badger-latest.xpi<BR>
<img src="images/haekchen.png" ALT="OK" align="left">Librefox: https://github.com/intika/Librefox/releases/download/Librefox-v2.1-v64.0.0/Librefox-2.1-Firefox-Linux-64.0.0.zip
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left">Update MozillaFirefox-52.9.0 (OpenSuSE: Februar 2019, gecko-engine / firefox-extensions ) with the at this time actual firefox-68.6.0 (el6, April 2020, quantum engine / webextensions):
<BR><BR>
As of February 2019
<BR><BR>
Enpack the following files out of rpm firefox-68.6.0 (el6, rpm, as of April 2020) into /usr/lib64/firefox/
<BR><BR>
gtk2 (directory)<BR>
fonts (directory)<BR>
run-mozilla.sh<BR>
libmozavcodec.so<BR>
libmozavutil.so<BR>
libmozsqlite3.so<BR>
libssl3.so (out of rpm openssl-1.1.1a up to openssl-1.1.1e)
<BR><BR>
Enpack the following files out of seamonkey (el6, rpm, as of: September 2019) into /usr/lib64/firefox/
<BR><BR>
liblgpllibs.so<BR>
libmozsandbox.so<BR>
plugin-container.so
<BR><BR>
Enpack the following files out of seamonkey (el6, rpm, as of: September 2019) into /usr/lib64/firefox/chrome/icons/default
<BR><BR>
en-US.aff<BR>
en-US.dic
<BR><BR>
Enpack the following files out of seamonkey (el6, rpm, Stand: September 2019) into /usr/lib64/firefox/browser/
<BR><BR>
blocklist.xml
<BR><BR>
Eventuelly remove IDs etc.<BR>
Edit /usr/lib64/firefox/application.ini and /usr/lib64/firefox/platform.ini and set the values as you like.
<BR><BR>
user.js<BR>
Firefox part within &quot;about:config&quot; gets autoconfigured each start of firefox. The configuration file named user.js making it possible can be found in the profil in /home/surfuser/.mozilla/firefox/profilename/.<BR> 
Details of user.js are listed furhter below.
<BR><BR>
Still not updated: libxul.so (gecko, as of: February 2019). If this disturbs you, install seamonkey (el6) or
<BR><BR>
patch the firefox-source-code with patches from
<BR><BR>
https://hg.mozilla.org/releases/mozilla-esr60 (diff)<BR>
https://hg.mozilla.org/releases/mozilla-esr68 (diff)
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left"><B>FirefoxESR-52-patches 2019- up to now:</B><BR>
2019-11-30      Updated package firefox-esr52 52.9.0-5  Muflone<BR>
2019-06-22      Updated package firefox-esr52 52.9.0-4  Muflone<BR>
2019-06-13      Updated package firefox-esr52 52.9.0-3  Muflone<BR>
2018-08-11      Updated package firefox-esr52 52.9.0-2  Muflone<BR>
https://aur.archlinux.org/cgit/aur.git/?h=firefox-esr52
<BR><BR>
Update Mozilla Firefox Javascript<BR>
mozjs (el6)<BR>
https://fr2.rpmfind.net
<BR><BR>
Alternatively Firefox-ESR &gt;= 60 (el6), ff-60-ESR (el6), ff-68-ESR (el6), ... with engine Quantum and Webextensions <u>does not enable most important extensions like RequestPolicy(BlockContinued)</u>.
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left">Anonymizing user-agents for extensions like secretagent: 
<BR><BR>
&quot;Privoxy/1.0&quot;<BR>
&quot;Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)&quot;<BR>
&quot;Mozilla/5.0 (compatible; bingbot/2.0; +http://www.bing.com/bingbot.htm)&quot;<BR>
&quot;Mozilla/5.0 (compatible; Yahoo! Slurp; http://help.yahoo.com/help/us/ysearch/slurp)&quot;<BR>
&quot;Mozilla/5.0 (compatible; Gooken; +http://www.gooken.de)&quot;
<BR><BR>
Warning: This Firefox is without extensions like Request(Block)PolicyContinued !
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left">[SOLVED by Gooken, 15.03.2020] Firefox doesn&#180;t show the actual extension version number for the extension installed by rpm within the item &quot;Addons&quot; from menu, so that Firefox is still working with the old, previous version installed before?<BR>
This might happen for mozilla-adblockplus for example, as the xpi-file is missing within the package!<BR>
Copy all of this extenisons out of /usr/share/mozilla/extensions into /home/surfuser/.mozilla/extensions (&quot;cp -axf&quot;), set the owner- and acess-rights upon it and delete the belonging xpi-file (of the previous version) out of the subdirectory of the profile. Now the correct version number is shown in Addons, with wich Firefox will work in future.
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left">Does the Browser restrict websites (formulars and so on) although extension like ABP, noscript and RequestPolicyBlockContinuned and so on got reconfigured?<BR>
If a reconfiguration of the extensions does not help at all, deactivate them in addons-&gt;extensions - extension by extension or, if nothing helps: all at once!<BR>
Now Firefox-52.9.0-ESR should really enable quit all functionality for websites.<BR>
After meant websites are left, do not forget to activate the extensions again!
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left"><font color="red" style="font-size: 12pt"><B>[ SOLVED : Websites with too much restrictions possible caused by extensions or security settings: No possible login etc. ]</B></font><BR>
If even the resetting of extensions does not help, <B>create one more, new profile</B> in about:profiles, set it temporary to the default profile and<BR>
restart firefox.
 <BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left"><B>Quit all files of ESR-52.9.0 except libxul.so, some libraries and the mask for settings omni.ja can be exchanged with those from newer Firefox like ESR-60.9.0 and ESR-68.</B>
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left"><B>Update kmozillahelper (zombie process): kmozillahelper (rosa2014.1) or deinstall it by &quot;rpm -e --nodeps kmozillahelper&quot;</B>
<BR><BR>
More about &quot;security with firefox (Gecko)&quot;:<BR>
from this webside further below!
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left">Tails 4.2 improves <B>automatic update</B><BR>
https://www.pro-linux.de/news/1/27707/tails-42-verbessert-das-automatische-update.html<BR>
Look for your Linux, if possible too.
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left"><font color="red" style="font-size:12pt"><B><u>AppAmor - &quot;o&#180;zapft is?&quot;</u><BR>
AppArmor - broaching the computer system or kernel-security-module?</B></font>, Gooken, 06.07.019<BR>
Profiles of AppArmor are: passwd, Browser, D-Bus, Netzwerk, Task-Manager (cron),  dhclient, dhcp, DAPRA-portmap, tmpwatch, procmail, skype, wireshark, ftpd, mysqld, postfix, sendmail, squid, sshd, useradd, vsftpd, xinetd, fingerd, ntalkd, cupsd, xfs, ping, nvidia_modprobe, dovecot, apache2, dnsmasq, ntpd, identd, smbd, traceroute, winbindd, lessopen, klogd, avahi-daemon,  ...<BR>
AppArmor works during the system boot by default for Linux like Debian Linux Tails. The boot time even more than doubles by this.<BR>
The module itself can be intergrated as a kernel security module as a kernel-boot-paramter. Pre-configured profiles can be envoked for example in /etc/rc.local.<BR>
The developer contracted with Microsoft years ago. Linus Tovalds recommends such securiy module, that can be integrated beneath Module SELinux developed by the NSA, discussed in another report we published in News&amp;Links and japanese Tomoyo Linux (rosa, mdv).<BR>
Like all other MAC (Mandatory Access Control for the control of process interaction), AppArmor isn&#180;t necessary to bound in &quot;secure=none&quot; in our kernel-bootline.<BR> 
Original program description from rpmfind.net: &quot;AppArmor is a security framework that proactively protects the operating system and applications. This package provides the libapparmor library, which contains the change_hat(2) symbol, used for sub-process confinement by AppArmor, as well as functions to parse AppArmor log messages.<BR>
Base profiles. AppArmor is a file and network mandatory access control mechanism. AppArmor confines processes to the resources allowed by the systems administrator and can constrain the scope of potential security
vulnerabilities. This package is part of a suite of tools that used to be named SubDomain.&quot;<BR>
&quot;AppArmor is security Linux kernel module similar to the SELinux but it&#180;s supposed to be easier to setup and maintain. <B>There are many reasons for you to disable it</B>, primary one is that its security features can get in the way of legitimate applications operation&quot;, https://www.techytalk.info/disable-and-remove-apparmor-on-ubuntu-based-linux-distributions/<BR>
Also see our report: serious hard News-Group-discussion about NSA&#180;s SELinux.<BR>
Later on, the programming expert of AppArmor became a paid expert of Microsoft. We made the expirience, our computer system runs quit different fast, depending on night and daytime and the kind of information we handled. But without all the kernel-security-modules, AppArmor and so on, it always runs as fast as the mouseclick allows: <B>mouseclick-fast</B>.
<BR><BR>
AppArmor is a security module for Linux. It is a Mandatory Access Control (MAC) System controlling each application and program through profiles with access rights refining the common ones. Beneath the default profiles any profiles can be created. For each profile one of three modes has to be set.<BR>
https://wiki.ubuntuusers.en/AppArmor/
<BR><BR>
<font color="green" style="font-size: 12pt"><B>Howto use Windows within Linux through Virtualbox</B></font>, PC-WELT.de, 08.05.2019<BR>
Per virtualization it is possible to use software and apps for Windows for Linux too. We show, howto.<BR>
https://www.pcwelt.de/ratgeber/Windows-als-virtuellen-PC-in-Linux-weiternutzen-9790033.html<BR>
Virtualbox (el6, all Linux): VirtualBox-6.0-6.0.6_130049_el6-1.x86_64.rpm from 16-Apr-2019 118M ( or VirtualBox-5.2-5.2.28_130011_Linux_x86.run ) and UserManual.pdf from<BR>
https://download.virtualbox.org/virtualbox/6.0.6<BR>
Alternatively: qemu (el6, all Linux), virt-manager (el6) and libvirt (el6),  wine64 (el6, all Linux, 64-Bit-MS-Windows-Emulator) and wine (el6, all Linux, 32-Bit-MS-Windows-Emulator) 
<BR><BR>
<font color="red" style="font-size: 12pt"><B>Wonderful Unix, wonderful OpenSource (&quot;tick-tick-tick-...&quot;), we are right (addition from 07.09.2013): Tagesschau reports about weak-points in many security software. The industry for software would have been built-in backdoors in their programs. It were possible to get information right before a user encrypts them and to send them over the internet. Super-computer were constructed to crack encrypted codes. NSA-program &quot;Bullrun&quot; belonged to the most kept secrets. The british agency GCHQ were very successfull in cracking code. Such analyses would have belonged to Google, Yahoo, Facebook und Microsoft.</B></font>
From banking software up to election computer, if databases, data protection or data security: Only OpenSource-Software can be trusted!
<BR><BR>
<font color="red" style="font-size: 12pt"><B>Since 1981/82: Black monitors, tons of updates (terrabytes), Cyberwar, Suneater, missing driver, driver- and hardware failouts, glibc-patch, openssl-patch, system breakdowns ( a.o. python), defect kernel and glibc, Dirty Cow, Sambacry, Meltdown and Spectre, security access points in browser, hacker, trojans, viruses, unsolved packet-dependencies and so on and on</B></font><BR>
It must be the kind of (artificial-) <font color="red" style="font-size: 12pt"><B>bomb</B></font> in each computer, because in any operating system and a lot of software and updates over updates, but through Gooken&#180;s &quot;Universal Linux 2010&quot; it manges the first time past over 25 years to disarm it.
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left"><font color="red" style="font-size: 12pt"><B>New computer: Four things you should do right up from the beginning</B></font>, PC-WELT.de, 02.03.2020<BR>
It does not matter, how young or old you are: It is a beautiful feeling to start a new computer. Care yourself for the security right up from the beginning.<BR>
https://www.pcwelt.de/international/Neuer-Computer-Vier-Dinge-die-Sie-gleich-zu-Beginn-machen-sollten-10763901.html
<BR><BR>
<font color="red" style="font-size: 12pt"><B>2009/2010: Year of the hardware, year of the software (CentOS el6, Mandriva2010) - ALL talk around the computer got passed! (!!!)</B></font><BR>
... almost surface-covering and security technically: just completion and updating (see the update-listing from our webside &quot;Universal Linux 2010&quot;! CentOS- and SL-updates (el6) are provided in the internet from year 2010 up to year 2026 and (mit el7) longer. Belonging power saving, mouseclick-fast and Linux-compatible lifetime-hardware (*) quit for free is listed in our -&gt; data sheed device by devcie: all-in-one-mainboard, net adapter, all poor radiationed and supersilent, ultraslim-WLED-TFT, SSD, rom-drives (DVD-burner), multifunction-printer (printing- scanning - faxing and copying), mouse/keyboard, computer tower,  ...<BR>
This all although the computer standed (and stands) for &quot;nothings more &quot;kaputter&quot; (out of order)&quot;... (following the excurs and see News&amp;Links)! Lifetime-hardware (*): We are going to report about errorcs and defects of the mainboard under data sheed in future. There are none up to now.
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left"><font color="red" style="font-size: 12pt"><B>Avoid these 14 mistakes and errors during building up your PC ( hardware ) by yourself !</B></font>, PC-WELT.de, 04.07.2020<BR>
If you build up a PC for the first time by yourself, take notice of 14 important things. Otherwiese you might have a big bad suprise!<BR>
https://www.pcwelt.de/ratgeber/tipp-pc-selbst-bau-fehler-vermeiden-10834772.html
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left"><B>Moving into a bad, bad world...</B><BR>
From Saturn-Service-Center: PC-build-up - Bios-Setup - partitonswise or complete mirroring (best done by the UNIX-/Linux-command dd) OR: partitionize - formatting (Linux-filesystem, almost ext4) - encryption (of most partitions) -  installation - configuration - defragmentation (not required for Linux) - making updates: 
<BR><BR>
Put your installation-DVD into the CD/DVD-drive to install the operating system, together with other belonging software. We assume the rpm-(packet-manager-) based Enterprise Linux (RHEL, Fedora, CentOS or Scientific Linux) or a Mandriva-Derivat (PC Linux OS, Rosa, Mageia, Mandriva), but refer to Debian Linux and so on and (indirectly) MS Windows too!<BR>
Follow the installation-steps from DVD (resp. other media like USB)!<BR>
Do all other steps by handbooks and guidelines from manufacturer, then follow this excurs!<BR>
For the partioning, under Linux at all formlized in the device-file fstab (/etc/fstab), we recommend already at this place at least 80 GB for the Root- and 20 GB for the home-partition, around 1 GB for the Boot-partition and the threefold of the RAM-size for the SWAP-partition (memory-swapping file).<BR>
Good to know, that encryption is possible already at this place for partitioning resp. right up after the formatting. We also refer to this namely later on in detail !
<BR><BR>
Installation und update sources Enterprise Linux CentOS resp. Scientific Linux (el6, el7):
<BR><BR>
<font style="font-size: 9pt">http://mirror.eu.oneandone.net/linux/distributions/centos/6.10/isos/x86_64/ <BR>
http://mirror.jgotteswinter.com/centos/6.10/isos/x86_64/ <BR>
http://wftp.<B>tu-chemnitz</B>.de/pub/linux/centos/6.10/isos/x86_64/ <BR>
http://ftp.halifax.<B>rwth-aachen</B>.de/centos/6.10/isos/x86_64/ <BR>
http://ftp.<B>rrzn.uni-hannover.de</B>/centos/6.10/isos/x86_64/ <BR>
http://mirror.de.leaseweb.net/centos/6.10/isos/x86_64/ <BR>
http://mirror.softaculous.com/centos/6.10/isos/x86_64/ <BR>
http://artfiles.org/centos.org/6.10/isos/x86_64/ <BR>
http://mirror.cuegee.de/centos/6.10/isos/x86_64/ <BR>
http://centos.bio.lmu.de/6.10/isos/x86_64/ <BR>
http://ftp.hosteurope.de/mirror/centos.org/6.10/isos/x86_64/ <BR>
http://mirror.daniel-jost.net/centos/6.10/isos/x86_64/ <BR>
http://mirrors.cicku.me/centos/6.10/isos/x86_64/ <BR>
http://mirror.yannic-bonenberger.com/centos/6.10/isos/x86_64/ <BR>
http://centos.datente.com/media/6.10/isos/x86_64/ <BR>
http://mirror.dataone.nl/centos/6.10/isos/x86_64/ <BR>
http://centos.schlundtech.de/6.10/isos/x86_64/ <BR>
http://ftp.plusline.de/centos/6.10/isos/x86_64/ <BR>
http://ftp.fau.de/centos/6.10/isos/x86_64/ <BR>
http://centos.mirrors.as250.net/6.10/isos/x86_64/ <BR>
http://mirror2.<B>hs-esslingen.de</B>/centos/6.10/isos/x86_64/ <BR>
http://mirror1.hs-esslingen.de/pub/Mirrors/centos/6.10/isos/x86_64/ <BR>
http://mirror.rackspeed.de/centos.org//6.10/isos/x86_64/ <BR>
http://mirror.ratiokontakt.de/mirror/centos/6.10/isos/x86_64/ <BR>
http://mirror.<B>netcologne.de</B>/centos/6.10/isos/x86_64/ <BR>
http://repo.de.bigstepcloud.com/centos/6.10/isos/x86_64/ <BR>
http://mirror.euserv.net/linux/centos/6.10/isos/x86_64/ <BR>
http://ftp.wrz.de/pub/CentOS/6.10/isos/x86_64/ <BR>
http://centos.intergenia.de/6.10/isos/x86_64/ <BR>
http://centos.mirror.net-d-sign.de/6.10/isos/x86_64/ <BR>
http://mirror.imt-systems.com/centos/6.10/isos/x86_64/ <BR>
http://mirror.23media.de/centos/6.10/isos/x86_64/ 
<BR><BR>
Nearby Countries 
<BR><BR>
http://mirror.<B>unix-solutions</B>.be/centos/6.10/isos/x86_64/ <BR>
http://centos.cu.be/6.10/isos/x86_64/ <BR>
http://mirror.kinamo.be/centos/6.10/isos/x86_64/ <BR>
http://centos.mirror.nucleus.be/6.10/isos/x86_64/ <BR>
http://mirror.spreitzer.ch/centos/6.10/isos/x86_64/ <BR>
http://linuxsoft.cern.ch/centos/6.10/isos/x86_64/ <BR>
http://mirror.<B>switch.ch</B>/ftp/mirror/centos/6.10/isos/x86_64/ <BR>
http://pkg.adfinis-sygroup.ch/centos/6.10/isos/x86_64/ <BR>
http://mirror.plusserver.com/centos/6.10/isos/x86_64/ <BR>
http://ftp.ciril.fr/pub/linux/centos/6.10/isos/x86_64/ <BR>
http://mirror1.evolution-host.com/centos/6.10/isos/x86_64/ <BR>
http://centos.crazyfrogs.org/6.10/isos/x86_64/ <BR>
http://distrib-coffee.ipsl.jussieu.fr/pub/linux/centos/6.10/isos/x86_64/ <BR>
http://centos.mirror.fr.planethoster.net/6.10/isos/x86_64/ <BR>
http://ftp.rezopole.net/centos/6.10/isos/x86_64/ <BR>
http://mirror.in2p3.fr/linux/CentOS/6.10/isos/x86_64/ <BR>
http://mirrors.ircam.fr/pub/CentOS/6.10/isos/x86_64/ <BR>
http://mir01.syntis.net/CentOS/6.10/isos/x86_64/ <BR>
ftp://ftp.free.fr/mirrors/ftp.centos.org/6.10/isos/x86_64/ <BR>
http://mirrors.standaloneinstaller.com/centos/6.10/isos/x86_64/ <BR>
http://centos.mirrors.ovh.net/ftp.centos.org/6.10/isos/x86_64/ <BR>
http://centos.mirror.ate.info/6.10/isos/x86_64/ <BR>
http://fr.mirror.babylon.network/centos/6.10/isos/x86_64/ <BR>
http://centos.quelquesmots.fr/6.10/isos/x86_64/ <BR>
http://ftp.pasteur.fr/mirrors/CentOS/6.10/isos/x86_64/ <BR>
http://mirrors.atosworldline.com/public/centos/6.10/isos/x86_64/ <BR>
http://mirror.ibcp.fr/pub/Centos/6.10/isos/x86_64/ <BR>
http://miroir.<B>univ-paris13</B>.fr/centos/6.10/isos/x86_64/ <BR>
http://fr2.rpmfind.net/linux/centos/6.10/isos/x86_64/ <BR>
http://centos.trisect.eu/6.10/isos/x86_64/ <BR>
http://linux.cs.uu.nl/centos/6.10/isos/x86_64/ <BR>
http://mirror.yourwebhoster.eu/centos/6.10/isos/x86_64/ <BR>
http://mirror.colocenter.nl/pub/centos/6.10/isos/x86_64/ <BR>
http://mirror.proserve.nl/centos/6.10/isos/x86_64/ <BR>
http://mirror.i3d.net/pub/centos/6.10/isos/x86_64/ <BR>
http://mirror.serverbeheren.nl/centos/6.10/isos/x86_64/ <BR>
http://mirror.amsiohosting.net/centos.org/6.10/isos/x86_64/ <BR>
http://mirror.1000mbps.com/centos/6.10/isos/x86_64/ <BR>
http://mirror.widexs.nl/ftp/pub/os/Linux/distr/centos/6.10/isos/x86_64/ <BR>
http://mirror.previder.nl/centos/6.10/isos/x86_64/ <BR>
http://mirror.nl.leaseweb.net/centos/6.10/isos/x86_64/ <BR>
http://mirror.denit.net/centos/6.10/isos/x86_64/ <BR>
http://mirror.sitbv.nl/centos/6.10/isos/x86_64/ <BR>
http://ftp.tudelft.nl/centos.org/6.10/isos/x86_64/ 
http://nl.mirror.babylon.network/centos/6.10/isos/x86_64/ <BR>
http://mirror.cj2.nl/centos/6.10/isos/x86_64/ <BR>
http://mirror.oxilion.nl/centos/6.10/isos/x86_64/ <BR>
http://centos.ams.host-engine.com/6.10/isos/x86_64/ <BR>
http://ftp.nluug.nl/ftp/pub/os/Linux/distr/CentOS/6.10/isos/x86_64/ <BR>
http://mirror.netrouting.net/centos/6.10/isos/x86_64/ <BR>
http://mirror.prolocation.net/centos/6.10/isos/x86_64/ <BR>
http://centos.mirror1.spango.com/6.10/isos/x86_64/ <BR>
http://mirror.schoemaker.systems/centos/6.10/isos/x86_64/ <BR>
http://mirror.nforce.com/pub/linux/CentOS/6.10/isos/x86_64/ <BR>
http://mirrors.supportex.net/centos/6.10/isos/x86_64/ <BR>
http://mirrors.noction.com/centos/6.10/isos/x86_64/ <BR>
http://centos.mirror.triple-it.nl/6.10/isos/x86_64/ <BR>
http://centos.mirror.transip.nl/6.10/isos/x86_64/ <BR>
http://mirror.fysik.dtu.dk/linux/centos/6.10/isos/x86_64/ <BR>
http://ftp.klid.dk/ftp/centos/6.10/isos/x86_64/ <BR>
http://mirrors.dk.telia.net/centos/6.10/isos/x86_64/ <BR>
http://mirror.one.com/centos/6.10/isos/x86_64/ <BR>
http://ftp.crc.dk/centos/6.10/isos/x86_64/ <BR>
http://mirror.mhd.uk.as44574.net/mirror.centos.org/6.10/isos/x86_64/ <BR>
http://centos.mirrors.nublue.co.uk/6.10/isos/x86_64/ <BR>
http://mirrors.melbourne.co.uk/sites/ftp.centos.org/centos/6.10/isos/x86_64/ <BR>
http://www.mirrorservice.org/sites/mirror.centos.org/6.10/isos/x86_64/ <BR>
http://anorien.csc.warwick.ac.uk/mirrors/centos/6.10/isos/x86_64/ <BR>
http://mirrors.clouvider.net/CentOS/6.10/isos/x86_64/ <BR>
http://mirror.bytemark.co.uk/centos/6.10/isos/x86_64/ <BR>
http://mirror.econdc.com/centos/6.10/isos/x86_64/ <BR>
http://mirrors.vooservers.com/centos/6.10/isos/x86_64/ <BR>
http://mirrors.ukfast.co.uk/sites/ftp.centos.org/6.10/isos/x86_64/ <BR>
http://centos.serverspace.co.uk/centos/6.10/isos/x86_64/ <BR>
http://centos.mirroring.pulsant.co.uk/6.10/isos/x86_64/ <BR>
http://mirror.sov.uk.goscomb.net/centos/6.10/isos/x86_64/ <BR>
http://mirror.vorboss.net/centos/6.10/isos/x86_64/ <BR>
http://mirror.ox.ac.uk/sites/mirror.centos.org/6.10/isos/x86_64/ <BR>
http://mirrors.coreix.net/centos/6.10/isos/x86_64/ <BR>
http://mirror.sax.uk.as61049.net/centos/6.10/isos/x86_64/ <BR>
http://mirror.cov.ukservers.com/centos/6.10/isos/x86_64/ <BR>
http://repo.uk.bigstepcloud.com/centos/6.10/isos/x86_64/ <BR>
http://mirror.as29550.net/mirror.centos.org/6.10/isos/x86_64/</font><BR>
...
<BR><BR>
...
<BR><BR>
Such listed &quot;lifetime-hardware&quot; from our data sheed ( like the low powered mainboard ASUS ITX-220, SSD, DVD-ROM-Burner and introduced AOC-TFT) does - within common outdoor temperature tolerances - not show any symptoms andtherefore - past &quot;endless&quot; powering on and offs and resets (new starts) of the computer system, even not those ones like the following:
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left"><font color="red" style="font-size: 12pt"><B>Software::Distributionen::Debian<BR>
Debian turns packet format from DEB to RPM</B></font>, PRO-LINUX, 02.04.2019<BR>
https://www.pro-linux.de/news/1/26921/debian-stellt-auf-rpm-um.html
<BR><BR>
<IMG SRC="images/intro.jpg" title="intro" alt="intro" align="right" border="0">
<BR><BR>
<center><img src="images/compiz.png" ALT="mdv" align="left" title="3ddesktop" border="0"><img src="images/mdv-3ddesktop.jpg" ALT="mdv" align="right" title="3ddesktop2" border="0"></center>
<font color="green" style="font-size: 12pt"><B>Year 2010: All for the computer is done (only updating remains essential)!<BR>
Computing without any risks:</B></font> Power-saving, mouseclick-fast all-in-one lifetime-hardware (quit) <BR>
<UL type="disc">
<LI>
(quit) for free  
<LI>
breathtaking mouseclick-fast already upon listed hardware from see under &quot;data sheed&quot; (immediately appearing graphics per mouseclick, fast graphics (* some intensive memory programs like browser and dolphin depending on the kernel version and RAM still might need a few seconds)). This is also a good indication for a tuned, fine working system with freeness from hacker and trojans and so on.
<LI>
&quot;Universal Linux 2010&quot;: of at least 8 MB RAM: We tested <B>&quot;Universal Linux 2010&quot;</B> out of kernel-4.19 (pclos, highly recommended, but our choice: 5.4.110 (pclos1) past 4.20.13 (pclos1), alternatively: kernel-4.18 (el8), kernel-4.9 (el6), kernel-2.32 (el6)); tls1.3 requires kernel &gt;= 4.13, see https://www.security-insider.de/https-mit-tls-13-in-der-praxis-a-714096/), if functioning, mkinitrd (pclos, rosa, mga2), nash (pclos, rosa, mga2), dracut (mga6: version 044, el6: version 004 (leads into manual LUKS-password request even in the case of existing password-key-file!, mdv2011: version 008)), glibc (el8: 2.28, pclos: the actual 2.31, mga6: 2.22, fc, for printers with 32-bit driver only like Brother install glibc (2.22, el6) too and relink and delete adequately in /lib), qt4 (el6) and KDE 4 as a mix out of kde (mdv2010.2, November 2011), kde (el6, actual patched, year 2018) and kde (4.4.4, OpenSuSE, 2013), glibc like glibc (pclos: 2.31),<BR>
kernel-firmware (around 250 MB, OpenSuSE, slack 14.2, el6,...), kernel-firmware-extra<BR>
<B>If glibc (mga6, 2.22, pclos) is kept, el8, pclos (at this time 2.31), el7, el6 and ROSA (see our section Update &quot;Universal Linux 2010&quot;) provide quit good alternatives to such high versioned Fedora Core (fc &gt;= 29).</B>
<BR><BR>
If a 32-bit-printer-driver is used, keep the previous glibc for i586, just install glibc (pclos: 2.31 x86_64, el6, x86_64)!
<BR><BR>
In order to avoid error-messages of glibc (el8) during system-boot, just remove the line LC_TIME=de_DE.UTF-8 in /etc/sysconfig/i18n ! Eventually install locales (pclos, mga7, mga6), locales-en, locales-de, ... too.<BR>
<BR><BR>
After the installation of kernel-4.19 (pclos), lookout for the requirements and install missing ones like kmod (pclos): &quot;rpm -qi --requires kernel-4.19....&quot;.
<LI>
without any breakdowns (stable hard- and software)
<LI>
shock-proofed ( SSD )
<LI>
break-in-protection (chassis intrusion detection, baby phone etc.)
<LI>
standardized, scientific Open Source (code from project groups and software practica of universities)
<LI>
self-repairing
<LI>
surface covering software (client, server, all rubriques including 3D- und 2D-games, ...) and all already installed on harddisc
<LI>
free from licence fees
<LI>
free from all maintenance
<LI>
free from virusses, worms, hacker, trojans, malware, adware, spyware, Meltdown and Spectre, pharming, spam, phishing, bots, tracking-scripts, cryptominers, driver-problems, ...
<LI>
without need of playing doctor (without essential harddisc-scans and self-checks)
<LI>
free from any password-hacks and -cracks by locked system and user accounts upon /sbin/nologin for the login-shell, by using  (access-protected) key-files from harddisc for the
<LI>
LUKS-encrypted partitions (except the LUKS-encrypted root-partition), common read/write/executable/suid/sgid/sticky-access-rights and ACL together with owner rights upon processes directories and files ( especially /usr/bin/su and /bin/su )
<LI>
through special kernel-, boot- and mount options, pamd-Login
<LI>
Start of X (X11, X-Windows) through options -nolisten tcp and -xauth, special &quot;xhost-&quot;-locks for other user
<LI>
Kernel-Securty-Modules (grub-boot-option security): MAC (what is not needed anymore to achieve promised total security, it&#180;s just for lovers): Mandatory Access Control (restricatable process interaction): AppArmor, Tomoyo (graphical support), SELinux, ...  
<LI>
All root owned processes except X (and mgetty/mingetty, if installed) are started by kthreadd and belong to the kernel
<LI>
Hardened kernel (not essentially needed, it origins from Kernel-Security-Module secumod): grsecurity-patches, paxctld 
<LI>
communication and surfing without any tracks in the world wide web and internet (prconfigured through prefs.js resp. user.js, through firejail sandbox-protected
<LI>
Firefox-ESR (Extended Security Release bzw. Pale Moon) with special extensions in private mode), with
<LI>
Tor (Tor-Browser) even anonymized within one more own sandbox without the origin IP (anonymized computer-identifying number out of the ipv4-address-namespace) and even 
<LI>
DNS-Traffic is kept anonymous by TorDNS as the remote-host-DNS, while the most frequent DNS-queries get resolved local within /etc/hosts and persistently pdnsd within the harddisc-cache (/var/lib/cache/pdnsd/pdnsd.cache).
<LI>
With Firejail many browser are running firejail&#180;s suid-sandbox, processed under user &quot;surfuser&quot; of the group &quot;surfgroup&quot; resp. &quot;toruser&quot; and &quot;torgroup&quot; by
<LI>
https/SSL/TLS (TLS2.0, TLS3.0) not hackable end-to-end-encrypted net-connections  
<LI>
free from Man-In-The-Middle-Attacks etc. and therefore (through Firewall Linfw3) without ICMP-, UDP- and IGMP-traffic and other communications (communication protocols): iptraf for example always shows an empty second field below the field with the TCP-connections) and so on 
<LI>
quit upgrade and update-free past year 2026 ( nahezu )
<LI>
all partitons including the root-partition and USB-memory-sticks, temporary directories and SWAP-filei are encrypted (FSE: Full System Encryption by LUKS, OpenPGP forr E-mail and single directories and files)
<LI>
Because of common read/write/executalbe-access-rights and  ACL, directories and files remain free from read, write and execution for all user (except root), especially for the surfuser except oneself as the active user:
</UL>
<BR>
paranoid security without too many restrictions for the user!
<BR><BR>
With this system, be welcomed live on the daily update-channel https://www.pro-linux.de from year 2010 up to year 2026 and longer!
<BR><BR>
Described &quot;Universal-Linux&quot; also includes emulators for other operating systems (beneath boot manager grub for the multi-boot):
<UL type="disc">
<LI>
MS Windows 3.1, 95, 98, SE, ME, NT 4.0, NT 3.5, XP, 2003, Vista, Windows 2008, Windows 7, alles sowohl i686 (32 Bit) als auch x86_64 (64 Bit): Emulator wine (haupts&auml;chlich), qemu oder xen), Virtualisierung: KVM (Kernel-Modul kvm-amd, kvm-intel mit libvirt, qemu-kvm, libvirt-client, libvirt-daemonsystem, bridge-utils, Virt-Manager, von Red Hat entwickelten und von Microsoft signierten Ger&auml;tetreiber ( Virt-IO-Driver )), Virtualbox, Vmware  (  Einzelheiten zur Virtualisierung siehe z.B. https://www.pcwelt.de/ratgeber/Virtualisierung_unter_Linux-9988750.html )
<LI>
MS DOS (dosemu)
<LI>
Apple Macintosh (basiliskII), PowerMAC (SheepShaver)
<LI>
Cisco 7200 and 3600 and Freescale Coldfire 5206 Emulator​ (dynamips)
<LI>
Amiga (uae, fs-uae, e-uae, uade)
<LI>
Atari ST, Atari 8 Bit Computer (hatari)
<LI>
Commodore VC 64 (vice, micro64), Amstrad CPC (caprice32), 
<LI>
ZX Spectrum (fbzx), MSX (fmsx, openmsx), NeoGeo (gngeo), Dragon32, Dragon64 und Tandy CoCo  (xroar), Minitel (xtel), Nintendo Gameboy (zboy), TI89(Ti)/92(+)/V200 emulator (tiemu3)​ ﻿  
<LI>
Multi-System-Emulator (simh)
<LI>
and many other computer operating systems.
</UL>
<BR>
<font color="green"><B>Gooken internet search engine shows you on this website step by step (hook by hook), what has to be done for reaching this total IT-security for the computer!</B></font>
You can enjoy hardened Linux booting from DVD, alternatively from USB-Stick:<BR>

<cite>&quot;Tails Linux: The Anti-NSA-PC, 04.23.2014<BR>

Can NSA crack everything, even hardest encryption? <B>Only a UNIX/Linux based System can achieve security</B>, means one of the authors below. Edward Snowden knows more about this than other ones. In order to make communication really secure, he decided to install the Linux-Distribution Tails. CHIP shows the Anti-NSA-PC for free [...]. Fast and simple: Tails runs as hardened Debian Linux&quot;,</cite> http://www.chip.de/artikel/Tails-Linux-installieren-Der-Anti-NSA-PC_63845971.html
<BR><BR>
<B>Edward Snowden also recommends a in his eyes secure Linux/UNIX-derivate on News&amp;Links#Computer and News&amp;Links#Alternatives and secure apps.</B>
But if the well-known referencial Computer-system resp. &quot;Universal-Linux&quot; we are going to introduce should ever not be such secure as it ought to be, the setting of the ro-option standing for read-only for the root-partition in /etc/fstab resp. /boot/grub/menu.lst (grub1, analogous grub2) past all the installing and updating can create a shoot-steadfast Linux even on harddrives doing its best.
<BR><BR>
<font color="green" style="font-size:12pt"><B>Darknet-Browser Tor is ready for Android: You can surf complete anonymously with your handy</B></font>, CHIP, 27.05.2019<BR>
The Tor-Browser is rated as a symbol for anonymes surfing in the internet and the easiest way into the Darknet. Now a ready version of the browser was provided in the Google Play Store. We show you, howto surf with this browser by upon your Android smartphone over the Tor-network.<BR>
https://www.chip.de/news/Darknet-Browser-Tor-fuer-Android-fertig-Am-Handy-komplett-anonym-surfen_148414180.html
<BR><BR>
Year 2016: Incredible high rubbish-hills of packages for not actual Linux-distributions are still provided by contributors like fr2.rpmfind.net and pbone.net. Most distribution versions can not be kept up-to-date, while the update-list from pro-linux.de is increasing day by day. Linux, comment from newsgroup alt.linux.suse, year 2003:
<BR><BR> 
<center><font color="red"><B><cite>&quot;I am so happy, that my linux run stable for the last 12 hours!&quot;.</cite></B></font></center>
<BR><BR>
More today:
<BR><BR>
<font color="green"><B>Red Hat Enterprise Linux 7.1 receives extended security certifications</B></font>, Pro-Linux, 14.12.2017<BR>
Without modification, Red Hat Enterprise Linux got certified for the &quot;General-Purpose Operating System Protection Profile&quot; (OSPP) 3.9. Now Red Hat Enterprise Linux can be used and applied in security-critical environments.<BR>.
https://www.pro-linux.de/news/1/25437/red-hat-enterprise-linux-71-erh&auml;lt-erweiterte-sicherheitszertifikation.html
<BR><BR>
<font style="font-size: 9pt">Date: 30.03.2011, <i>thanks, we got it:</i> [espeak -v en &quot;]  Secure, <img src="images/haekchen.png" ALT="OK" align="left" border="0"><i>mouseclick-fast upon MS Windows 7 and Linux and all belonging Linux-games</i>: (bohemian) 19 W power consumpting computer ASUS (mini) ITX-220 from year 2009/2010 with a socked, crasfree bios, onboard Intel-soundchip, onboard Atheros-LAN-Chip and -ROM and onboard INTEL graphics, AOC WLED-TFT less 18 Watt with more than one million working hours, all for about 200 &euro;. Looking upon technical revisions and software-rpm-packet-changelogs one notices, the world gave its best: <B>2010</B> - <B>(quit) everything has been made for computers</B> - magic year of fast, ergonomic, powersaving hardware, year of Mandriva 2010, year of CentOS 6 ( DVD CentOS 6 (actual tenth-revision, with many updates and patches by Jonny Hughes, NY) for 4,95 &euro; or for free out of the internet ) and the for the more than 50.000 next ten years (until year 2026) fixed and patched packet-versions of Fedora Project resp. the in a careful way resulting and ( Fedora Core (fc) - ) backported Enterprise Linux (el) resp. CentOS 6, where <font color="green" style="font-size: 12pt"><B>its IT-security raised up quit to maxium by concept with methods, configurations and updates we want to present here on this webside</B></font>, so that <B>computer-technique got solved</B> (after a long, long time ...): error-free (total: since python-stablity-patch from year 2016), free from trojans, hacker, viruses, spyware, adware, everything. Day after day the amount of still missing software declined and you still have to keep the computer up to date sometimes by installing some updates. Up to that year, the paid prices for different Linux distributions can exceed even those of other operating systems. But now you won&#180;t have any difficulties. Text to the illustration from the top, Build your final 
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">
<center><font style="font-size: 12pt"><B>&quot;UNIVERSAL COMPUTER with UNIVERSAL-LINUX&quot;</B></font></center>
<BR><BR>
consisting of up to 100 DVD a 4,4 GB full of rpm- and deb-packages (Debian) and many Tarballs from anywhere ON THE DAILY UPDATE-PATCH-CHANNEL (fc, el6/sl6) http://www.pro-linux.de/sicherheit/1/1/1.html) and belonging more Packages from pkgs.org, fr2.rpmfind.net and pbone.net. All kind of Linux-games run fine too.
<BR><BR>
Similar to Scientific Linux, &quot;<B>CentOS</B>&quot; stands for &quot;Community Enterprise Operating System&quot;. It is based to 100% upon the source code of Red Hat Enterprise Linux. The only difference is, that commercial support is missing. Typical CentOS-user are organizations and private people aiming for a stable Enterprise-operating-system without the need of commercial support. The stable versions of CentOS are supported with (RPM-) acutualizations for ten years.<BR>
CentOS is a Linux-Distribution from Red Hat with the same source code like Red Hat Enterprise Linux. Since January 2014 CentOS belongs to Red Hat as a costly free alternative to Red Hat Enterprise Linux for all those, that do not need commercial support for Red Hat Enterprise Linux. Even no one guarantees, CentOS in fact is almost compatible with Red Hat Enterprise Linux.<BR>
https://www.pro-linux.de/news/1/27054/centos-8-ben&ouml;tigt-noch-etwas-zeit.html
<BR><BR>
What we are going to describe in the following:
<BR><BR>
No hacker, no virusses, no trojans, no malware, no ad- and no spyware, no ransomware, no dangerous scripts, rare resp. no left traces in the net, ..., nothing of it, and no kernel up from 2.6.39 (if stable) and not much root owned processes, that can affect the computer system anymore: use
<UL type="disc">
<LI>
 command <B>dd</B> for secure working with the partitionwise restores and backups started from an encrypted rescue partition, usb-memory-stick or DVD like <B>Knoppix</B> together with cryptsetup (LUKS) installed,
<LI>
<font style="font-size: 12pt">ipables-based firewall <B>linfw3</B></font>,
<LI>
port scan detection (psad, psd),
<LI>
intrusion detection sysems (IDS)
<LI>
the local dns-cache <B>dnsmasq</B>
<LI>
and <B>adblocker</B> like our listing importing konqueror-adblocker and free <B>useragent-settings</B> and other extensions for your browser together with
<LI>
sandbox firejail (pclos),
<LI>
configure /etc/fstab for the declaration of the partitions and file systems, in our case ext4 under security aspects,
<LI>
configure /etc/passwd for the <B>blocking shells</B>,
<LI>
set owner- and access-rights,
<LI>
ACL (setfacl/getfacl),
<LI>
use MAC (apparmor, tomoyo) and
<LI>
chattr upon UNIX/Linux-filesystems and  follow the
<LI>
<B>configurations and methods introduced</B> here on this webside to make security really possible! Profit from
<LI>
 end-to-end-encrypting TLS/SSL used by browser like <B>Konqueror</B>, Firefox, <B>Firefox ESR</B> resp. Tor-Browser (Firefox ESR) and
<LI>
 pgp/gpg- and TLS-based e-mail-clients like Thunderbird and/or Kmail, claws-mail with claws-mail-plugins, ...
<LI>
 all this upon a <B>Luks</B>/dm-crypt and <B>dracut</B> full encrypted computer-system (FSE), going sure also with a  <B>read-only</B> set (and by dracut LUKS-encrypted) root-partition.
</UL>
<BR>
HOWTO: Either you install the version of an actual (new) Linux-distribution after the expiration of the updates for your installed one, we recommend <B>Debian Linux</B> resp. Ubuntu, SuSE Linux, Fedora, the in a careful way from Fedora resulting and backported CentOS (resp. RedHat), Rosa and Openmandriva, PCWelt: Ubuntu and Mint, or you install the covering and approved (and many, many TOP-games on the base of OpenGL and SDL including) el6, mdv2010.0 resp. mdv2011, mga1 up to mga3 or any rpm-distribution of the last decades from fr2.rpmfind.net and care for its updates. For mdv2010.0 you think of updating with the secure running autumn- and spring- updatening version mdv2010.1 and mdv2010.2 to mdv2010.2 (65 GB, around 15 DVD).
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">How does this work? It&#180;s easy (or it sound so): All you need for the next time in principle is &quot;any&quot; Linux-distribution from DVD/CD, USB-memory-stick or per download out of the internet etc., one that is named by PRO-Linux (http://www.pro-linux.de/1/1/sicherheit.html) withiin the hugh update-listing of the last ten, twenty years. Install this distribution following the self activating  installation instructions onto an installation media (we recommend an at least 120 GB Solid State Disk (SSD with an at least 65 GB sized main- resp. root-partition and at least 2 GB SWAP-partition)) and eventually more single programms resp. packages with the help of an as much expressive packagemanger as possible. We recommend Debian Linux or a ( Fedora Core - ) backported and long-update-support guaranteeing Linux-Distribution (like RedHat resp. CentOS and Scientific Linux el6 and el7). Regardless from the amount of software resp. packages, this Linux-Distribution can be considered as a <B>gear to the big UNIX/Linux- and its emulation-world</B> of even more, we recommend actual UNIX-/Linux-distributions, actual updates and all kind of software and games. Emulation means, that with the help of emulators (like Wine for MS Windows) and virtual machines like Xen and Qemu software running upon other operating systems can be used too. Notice, that it is possible to install all software on the installation media at once without risking too much. The important thing is, that it is possisble to upgrade the Standard-GNU-C-library (glibc) of this distribution, so that the kernel of the LONGTERM-series out of kernel-3 and -4 can be upgraded too..
<BR><BR>
<font color="green"><B>A securing 1:1 partioned media should not miss! Perform all security methods introduced in future point by point <i>as soon as possible</i>, as the installation is endangered extremely (by hacker and so on) with the very first built-up connection to the net! </B></font>
<BR><BR>
<B>quot;There is not much diffrence between the Linux-Distributions / Der Unterschied zwischen den Linux-Distributionen ist nicht sehr gro&szlig; mit Ausnahme der Basisinstallation und der Paketverwaltung. Die meisten Distributionen beinhalten zum Gro&szlig;teil die gleichen Anwendungen. Der Hauptunterschied besteht in den Versionen dieser Programme, die mit der stabilen Ver&ouml;ffentlichung der Distribution ausgeliefert werden. Zum Beispiel sind der Kernel, Bind, Apache, OpenSSH, Xorg, gcc, zlib, etc. in allen Linux-Distributionen vorhanden.&quot;</B><BR>
https://www.debian.org/doc/manuals/securing-debian-howto/ch12.de.html
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Avoid Legacy Communication Services</B></font><BR>
A large number of legacy Unix programs do not provide essential security during data transmission. These include FTP, Telnet, rlogin, and rsh. No matter whether youk're securing your Linux server or personal system, stop using these services for good.<BR>
You can use other alternatives for this type of data transfer tasks. For example, services like OpenSSH, SFTP, or FTPS makes sure that data transmission happens over a secure channel. Some of them employ SSL or TLS encryptions to harden your data communication. You may use the below commands to remove legacy services like NIS, telnet, and rsh from your system.<BR>
# yum erase xinetd ypserv tftp-server telnet-server rsh-server<BR>
# apt-get --purge remove xinetd nis yp-tools tftpd atftpd tftpd-hpa telnetd rsh-server rsh-redone-server<BR>
Use the first command for RPM-based distributions like RHEL and Centos or any system that uses the yum package manager. The second command works on Debian/Ubuntu-based systems.<BR>
https://www.ubuntupit.com/best-linux-hardening-security-tips-a-comprehensive-checklist/
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Enable SELinux</B><BR>
SELinux or Security Enhanced Linux is a security mechanism that implements various methods for access control at the kernel level. SELinux is developed by Red Hat and has been added to many modern Linux distributions. You can think of it as a set of kernel modifications and user-space tools. You can check out whether SELinux is enabled in your system or not by using the below command.<BR>
# getenforce<BR>
If it returns enforcing that means your system is protected by SELinux. If the result says permissive that means your system has SELinux but it&#180;s not enforced. It will return disabled for systems where SELinux is completely disabled. You can enforce SELinux by using the below command.<BR>
# setenforce 1<BR>
https://www.ubuntupit.com/best-linux-hardening-security-tips-a-comprehensive-checklist/
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Lock Login Attempts after Failure</B><BR>
Admins should make sure that users can&#180;t log into their server after a certain number of failed attempts. This increases the overall security of the system by mitigating password attacks. You can use the Linux faillog command to see the failed login attempts.<BR>
# faillog<BR>
# faillog -m 3<BR>
# faillog -l 1800<BR>
The first command will display the failed login attempts for users from the /var/log/faillog database. The second command sets the maximum number of allowed failed login attempts to 3. The third one sets a lock of 1800 seconds or 30 minutes after the allowed number of failed login attempts.<BR>
# faillog -r -u &lt;username&gt,<BR>
Use this command to unlock a user once they&#180;re prohibited from login. The max number of failed login attempts for the root user should be high or else brute force attacks may leave you locked.<BR>
https://www.ubuntupit.com/best-linux-hardening-security-tips-a-comprehensive-checklist/
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Check for Empty Passwords</B><BR>
Users are the weakest link in a system&#180;s overall security. Admins need to make sure that no user on the system has empty passphrases. This is a mandatory step for proper Linux hardening. Use the following awk command in Linux to verify this.<BR>
# awk -F: '(&#36;2 == &quot;&quot;) {print}&#180; /etc/shadow<BR>
It will display if there&#180;re any user accounts that have an empty password in your server. To increase Linux server hardening, lock any user that uses empty passphrases. You can use the below command to do this from your Linux terminal.<BR>
# passwd -l &lt;username&gt;<BR>
https://www.ubuntupit.com/best-linux-hardening-security-tips-a-comprehensive-checklist/
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Validate the UID of Non-Root Users</B><BR>
A UID or User-ID is a non-negative number assigned to the users of a system by the kernel. The UID 0 is the UID of the superuser or root. It is important to make sure that no user other than root has this UID value. Else, they can masquerade the whole system as root.<BR>
# awk -F: '(&#36;3 == &quot;0&quot;) {print}&#180; /etc/passwd<BR>
You can find out which users have this UID value by running this awk program. The output should contain only a single entry, which corresponds to root.<BR>
https://www.ubuntupit.com/best-linux-hardening-security-tips-a-comprehensive-checklist/
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Remove the X Window Systems (x11)</B><BR>
The X Window Systems or x11 is the de-facto graphical interface for Linux systems. If you&#180;re using Linux for powering your server instead of your personal system, you can delete this entirely. It will help to increase your server security by removing a lot of unnecessary packages.<BR>
# yum groupremove &quot;X Window System&quot;<BR>
This yum command will delete x11 from RHEL or Centos systems. If you&#180;re using Debian/Ubuntu instead, use the following command.<BR>
# apt-get remove xserver-xorg-core<BR>
https://www.ubuntupit.com/best-linux-hardening-security-tips-a-comprehensive-checklist/<BR>
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Disable the X Window Systems (x11)</B><BR>
If you don&#180;t want to delete x11 permanently, you may disable this service instead. This way, your system will boot into text mode instead of the GUI. Edit the /etc/default/grub file using your favorite Linux text editor.<BR>
# nano /etc/default/grub<BR>
Find the below line –<BR>
GRUB_CMDLINE_LINUX_DEFAULT=&quot;quiet splash&quot;<BR>
Now, change it to –<BR>
GRUB_CMDLINE_LINUX_DEFAULT=&quot;text&quot;<BR>
Finally, update the GRUB file by using –<BR>
# update-grub<BR>
The last step is to tell systemd to not load the GUI system. You can do this by running the below commands.<BR>
# systemctl enable multi-user.target --force
# systemctl set-default multi-user.target
https://www.ubuntupit.com/best-linux-hardening-security-tips-a-comprehensive-checklist/
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Investigate IP Addresses</B><BR>
If you find any suspicious IP in your network, you can investigate it using standard Linux commands. The below command uses netstat and awk to display a summary of running protocols.<BR>
# netstat -nat | awk &#180;{print &#36;6}&#180; | sort | uniq -c | sort -n<BR>
Use the below command to find more information about a specific IP.<BR>
# netstat -nat |grep &lt;IP_ADDR&gt, | awk &#180;{print &#36;6}&#180; | sort | uniq -c | sort -n<BR>
To see all unique IP addresses, use the following command.<BR>
# netstat -nat | awk '{ print &#36;5}&#180; | cut -d: -f1 | sed -e &#180;/^&#36;/d&#180; | uniq<BR>
Feed the above command to wc for getting the number total of unique IP addresses.<BR>
# netstat -nat | awk &#180;{ print &#36;5}&#180; | cut -d: -f1 | sed -e &#180;/^&#36;/d&#180; | uniq | wc -l<BR>
Visit our guide on various Linux network commands if you want to dive deeper into network security.<BR>
https://www.ubuntupit.com/best-linux-hardening-security-tips-a-comprehensive-checklist/
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Disable SUID and SGID Permission</B><BR>
SUID and SGID are special types of file permission in the Linux file system. Having the SUID permission allows users other to run executable files like they are the owner of those files. Likewise, the SGID permission gives directory rights similar to the owner but also gives ownership of all child files in a directory.<BR>
These are bad since you don&#180;t want any users other than you to have those permissions on a secure server. You should find any file that has SUID and SGID enabled and disable those. The following commands will respectively list all files that have SUID and SGID permission enabled.<BR>
# find / -perm /4000<BR>
# find / -perm /2000<BR>
Investigate these files upon /etc/permissions* (permissions, OpenSuSE) properly and see if these permissions are mandatory or not. If not, remove SUID/SGID privileges. The below commands will remove SUID/SGID respectively.<BR>
https://www.ubuntupit.com/best-linux-hardening-security-tips-a-comprehensive-checklist/
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Enable Disk Quotas</B><BR>
Disk Quotas are simply limits set by the system administrator which restrict usage of the Linux filesystem for other users. If you are hardening your Linux security, implementing disk quotas is mandatory for your server.<BR>
# nano /etc/fstab<BR>
LABEL=/home /home ext2 defaults,usrquota,grpquota 1 2<BR>
Add the above line to /etc/fstab for enabling disk quota for the /home filesystem. If you have already a line /home, modify that accordingly.<BR>
# quotacheck -avug<BR>
This command will display all quota information and create the files aquota.user and aquota.group in /home.<BR>
# edquota &lt;user&gt,<BR>
This command will open the quota settings of &lt;user&gt, in an editor where you can assign the quota limits. You can set both soft and hard limits for the disk quota size as well as the number of inodes. Use the below command to view a report on the disk quota usage.<BR>
# repquota /home<BR>
https://www.ubuntupit.com/best-linux-hardening-security-tips-a-comprehensive-checklist/<BR>
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Maintain Word-Writable Files</B><BR>
Word-writable files are fils that anyone can write to. This can be very dangerous since it effectively allows users to run executables. Plus, your Linux hardening is not foolproof unless you&#180;ve set the appropriate sticky bits. A sticky bit is a single bit that, when set, prevents users from deleting someone else&#180;s directories.<BR>
Thus, if you&#180;ve got world-writable files that have sticky bits set, anyone can delete these files, even if they&#180;re not owned by them. This is another serious issue and will often cause havoc on server security. Luckily, you can find all such files by using the below command.<BR>
# find /path/to/dir -xdev -type d \( -perm -0002 -a ! -perm -1000 \) -print<BR>
Replace the path argument with directories that may contain such files. You can also start from the root ‘/&#180; of your filesystem but it&#180;ll take a long time to execute. Once listed, investigate the files thoroughly and change their permissions as required.<BR>
https://www.ubuntupit.com/best-linux-hardening-security-tips-a-comprehensive-checklist/
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Maintain Noowner Files</B><BR>
Noowner files are files that do not have any owner or group associated with them. These can pose a number of unwanted security threats. So, admins should take the necessary measures required to identify these. They can either assign them to the appropriate users or may delete them entirely.<BR>
You can use the following find command to list the noowner files present in a directory. Check out this guide to learn more about the find command in Linux.<BR>
# find /path/to/dir -xdev -type d \( -perm -0002 -a ! -perm -1000 \) -print<BR>
Inspect the results thoroughly to make sure there aren&#180;t any unwanted noowner files in your server.<BR>
https://www.ubuntupit.com/best-linux-hardening-security-tips-a-comprehensive-checklist/
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Install Logwatch / Logcheck</B><BR>
Log analyzer
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Secure Web Server</B><BR>
Linux servers are widely used for powering web applications. If you&#180;re using your server for this purpose, you need to harden your server components appropriately. Some of these the PHP runtime, Apache HTTP server, and the Nginx reverse proxy server. Secure your Apache server by adding the below lines in the configuration file.<BR>
# nano /etc/httpd/conf/httpd.conf<BR>
ServerTokens Prod<BR>
ServerSignature Off<BR>
TraceEnable Off<BR>
Options all -Indexes<BR>
Header always unset X-Powered-By<BR>
# systemctl restart httpd.service<BR>
We&#180;ve prepared a standalone guide on the Nginx server a while ago. Follow the suggestions in that guide to secure your Nginx server. Head over to this documentation for learning the best PHP security practices.<BR>
https://www.ubuntupit.com/best-linux-hardening-security-tips-a-comprehensive-checklist/
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Configure TCP Wrappers</B><BR>
TCP wrappers are a host-based network filtering system that allows or denies access to your host services based on pre-set policies. However, for it to work, your host service must be compiled against the libwrap.a library. Some common TCP wrapperd Unix daemons include sshd, vsftpd, and xinetd.<BR>
# ldd /sbin/sshd | grep libwrap<BR>
This command will notify if a service is supported by TCP wrappers or not. The TCP wrappers system enforces access control using two configuration files, the /etc/hosts.allow and /etc/hosts.deny. For example, add the following lines to /etc/hosts.allow for allowing all incoming requests to the ssh daemon.<BR>
# nano /etc/hosts.allow<BR>
sshd : ALL<BR>
Add the following to /etc/hosts.deny for rejecting all incoming requests to the FTP daemon.
# nano /etc/hosts.deny<BR>
vsftpd : ALL<BR>
To see more information about the configuration options, consult the tcpd man page, or visit this documentation from FreeBSD.<BR>
https://www.ubuntupit.com/best-linux-hardening-security-tips-a-comprehensive-checklist/
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Maintain Cron Access</B><BR>
Linux provides robust automation support by means of cron jobs. In short, you can specify routine tasks using the cron scheduler. Visit our earlier guide on cron and crontab to learn how cron works. Nevertheless, admins must make sure that ordinary users are unable to access or put entries in the crontab. Simply put their usernames in the /etc/cron.deny file to do this.<BR>
# echo ALL &gt,&gt,/etc/cron.deny<BR>
This command will disable cron for all users in your server except root. To allow access for a specific user, add his username.<BR>
https://www.ubuntupit.com/best-linux-hardening-security-tips-a-comprehensive-checklist/
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Disable Ctrl+Alt+Delete</B><BR>
The Ctrl+Alt+Delete key combinations allow users to force reboot many Linux distributions. This can be particularly problematic if you&#180;re managing a secure server. Admins should disable this hotkey in order to maintain proper Linux hardening. You can run the following command to disable this in systemd-based systems.<BR>
# systemctl mask ctrl-alt-del.target<BR>
If you&#180;re on legacy systems that use init V instead of systemd, edit the /etc/inittab file and comment out the following line by appending a hash before it.<BR>
# nano /etc/inittab<BR>
https://www.ubuntupit.com/best-linux-hardening-security-tips-a-comprehensive-checklist/
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Restrict Core Dumps</B><BR>
Core dumps are memory snapshots (core-files) that contain crash information of executables. These are created when binaries stop working or crash in simple terms. They contain too much sensitive information about the host system and may threaten your Linux security if fallen into the wrong hands. Thus, it is always a good idea to restrict core dumps on production servers.<BR>
# echo &#180;hard core 0&#180; &gt,&gt, /etc/security/limits.conf<BR>
# echo &#180;fs.suid_dumpable = 0&#180; &gt,&gt, /etc/sysctl.conf<BR>
# sysctl -p<BR>
# echo &#180;ulimit -S -c 0 &gt, /dev/null 2&gt,&1&#180; &gt,&gt, /etc/profile<BR>
Run the above commands to restrict cor dumps on your server and increase Linux hardening.<BR>
https://www.ubuntupit.com/best-linux-hardening-security-tips-a-comprehensive-checklist/
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Right up from the very beginning - installing an OS like UNIX/Linux</B>
<BR><BR>
... most already through installation media:
<BR><BR>
format -&quot; partitioning -&gt; format -&gt; encryption (full system encryption, FSE) -&gt; format -&gt; installation (from extern media) -&gt; configuration -&gt defragmentation (not essential for many UNIX/Linux file systems) -&gt; encryption (full system encryption, FSE) -&gt; (backup with dd and) actualization -&gt; configuration -&gt; (backup with dd and) actualization ( ... notice total time needed: ? )
<BR><BR>
Alternatively: Some nice &quot;guy&quot; or so does many things for you by mirroring almost completed system from his onto your own media (SSD (sdx), harddisc (S-ATA: sdx, IDE: hdx, CD-/DVD, USB-memory stick, ...). This can save plenty of time (look out for the right processor architecture (x86_64, i686, ...) and set /etc/X11/xorg.conf for the next time to vesa or fb)! Do this mirroring with a command like: &quot;dd if=/dev/sda of=/dev/sdb&quot;<BR>
Use sdd instead of dd to see a progress bar.
<BR><BR>
Used editor in the following: nano 
<BR><BR>
First this webside introduces some configurations, followed by actualization, partitioning, encryption during the introduction of basic shell-commands.
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Mounting partitions the right way</B><BR>
When mounting an Ext file system (ext2, ext3 or ext4), there are several additional options you can apply to the mount call or to /etc/fstab. For instance, this is my fstab entry for the /tmp partition:
<BR><BR>
       /dev/hda7    /tmp    ext2    defaults,nosuid,noexec,nodev    0    2
<BR><BR>
You see the difference in the options sections. The option nosuid ignores the setuid and setgid bits completely, while noexec forbids execution of any program on that mount point, and nodev ignores device files. This sounds great, but it:
<BR><BR>
    only applies to ext2 or ext3 file systems
<BR><BR>
    can be circumvented easily
<BR><BR>
The noexec option prevents binaries from being executed directly, but was easily circumvented in earlier versions of the kernel:
<BR><BR>
       alex&#64;joker:/tmp# mount | grep tmp<BR>
       /dev/hda7 on /tmp type ext2 (rw,noexec,nosuid,nodev)<BR>
       alex&#64;joker:/tmp# ./date<BR>
       bash: ./date: Permission denied<BR>
       alex&#64;joker:/tmp# /lib/ld-linux.so.2 ./date<BR>
       Sun Dec  3 17:49:23 CET 2000
<BR><BR>
Newer versions of the kernel do however handle the noexec flag properly:
<BR><BR>
       angrist:/tmp# mount | grep /tmp<BR>
       /dev/hda3 on /tmp type ext3 (rw,noexec,nosuid,nodev)<BR>
       angrist:/tmp# ./date<BR>
       bash: ./tmp: Permission denied <BR>
       angrist:/tmp# /lib/ld-linux.so.2 ./date <BR>
       ./date: error while loading shared libraries: ./date: failed to map segment <BR>
       from shared object: Operation not permitted
<BR><BR>
However, many script kiddies have exploits which try to create and execute files in /tmp. If they do not have a clue, they will fall into this pit. In other words, a user cannot be tricked into executing a trojanized binary in /tmp e.g. when /tmp is accidentally added into the local PATH.
<BR><BR>
Also be forewarned, some script might depend on /tmp being executable. Most notably, Debconf has (had?) some issues regarding this, for more information see Bug 116448.
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B><u>Decisive advantage of option noexec, especially for the home partition: Potential virus host cells (executable files, that may be virus infected hosts) remain absolutely ineffective! Viruses can not infect files on the home partition and temporary partitions, if the option noexec is set (while the root-partition got already resistant against viruses in usermode by normal access-rights below or equal chmod &lt;=755 for owners like root !)</u></B>
<BR><BR>
The following is a more thorough example. A note, though: /var could be set noexec, but some software [21] keeps its programs under in /var. The same applies to the nosuid option.
<BR><BR>
     /dev/sda6   /usr          ext3    defaults,ro,nodev       0       2<BR>
     /dev/sda12  /usr/share    ext3    defaults,ro,nodev,nosuid        0       2<BR>
     /dev/sda7   /var          ext3    defaults,nodev,usrquota,grpquota 0      2<BR>
     /dev/sda8   /tmp          ext3    defaults,nodev,nosuid,noexec,usrquota,grpquota    0       2<BR>
     /dev/sda9   /var/tmp      ext3    defaults,nodev,nosuid,noexec,usrquota,grpquota    0       2<BR>
     /dev/sda10  /var/log      ext3    defaults,nodev,nosuid,noexec    0       2<BR>
     /dev/sda11  /var/account  ext3    defaults,nodev,nosuid,noexec    0       2<BR>
     /dev/sda13  /home         ext3    rw,nosuid,nodev,exec,auto,nouser,async,usrquota,grpquota                0       2<BR>
     /dev/fd0    /mnt/fd0      ext3    defaults,users,nodev,nosuid,noexec      0       0<BR>
     /dev/fd0    /mnt/floppy   vfat    defaults,users,nodev,nosuid,noexec      0       0<BR>
     /dev/hda    /mnt/cdrom    iso9660 ro,users,nodev,nosuid,noexec            0       0<BR>
https://www.debian.org/doc/manuals/securing-debian-howto/ch4.en.html
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Postfix - shorten information</B><BR>
<BR><BR>
/etc/postifx/main.cf
<BR><BR>
smtpd_banner = &#36;myhostname ESMTP &#36;mail_name (FreeBSD/GNU)
<BR><BR>
... that means without version number and eventually with a new operating system name.<BR>
https://www.debian.org/doc/manuals/securing-debian-howto/ch12.de.html
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>dbus (messagebus): Secure up single service-files</B><BR>
dbus of many versions does make mistakes from time to time, by removing single service-files out of /usr/share/dbus-1/services and /usr/share/dbus-1/system-services from time to time without being allowed.<BR>
Therefore all service-files should be backuped in any backup-directory.
<BR><BR>
Exchange &quot;Exec=kded&quot; into &quot;Exec=kded4&quot;<BR>
nano /usr/share/dbus-1/services/org.kde.kded.service<BR>
[D-BUS Service]<BR>
Name=org.kde.kded<BR>
Exec=/usr/bin/kded4
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Just update by the kernel-binary (kernel-...rpm) or configure, patch and compile the kernel-source (kernel-...rpm.src)</B><BR>
We assume, that any rpm-based Linux-Distribution is already installed on a storage media like harddisc. Our section for updates refers to RedHat, CentOS oder Scientific Linux, Fedora Core, PCLinuxOS, ROSA, Mageia oder Mandriva.<BR>
<B>How to configure, patch and compile kernel-sources</B>: Download and install all binary rpm required for the kernel. Then download, install or enpack the kernel-source-rpm into /usr/src either by &quot;tar -xvjf kernel-source-package&quot;, rpm on the kernel-source-rpm or file-roller. A new directory named &quot;linux-kernelversion-xxx&quot; or &quot;kernel-source-xxx&quot; is created within /usr/src. <BR>
Link this new directory to a linking file named linux: &quot;ln -sf linux-xxx linux&quot; resp. &quot;ln -sf kernel-source-xxx linux&quot;.<BR>
Change into this directory linux resp. linux-xxx resp. kernel-source-xxxx and call &quot;menu oldconfig&quot;.. A file .config is created to configure the kernel.<BR>
Type &quot;menu xconfig&quot; or &quot;menu gconfig&quot; or &quot;make menuconfig&quot; and configure the kernel-drivers and so on needed (CC), needed as modules (CC MM) and such to resign from.
<BR>
For FSE (full system encryption) by dracut, two options have to be enabled, what is already done in kernel (pclos, rosa2016.1, el8, el7) and kernel-desktop (mdv2011) but not kernel (el6):
<BR><BR>
Generally, the security level of software is not only presented by stability, but also by the freeness of errors and warnings during the compilation of their source codes listed by the compiler. Kernel-2.6.32 (el6) consists of many of them and some of them are caused by kmem.h, while the quit restless error-free (only a few small patches 2012-2016 inclusive dirty-cow are known!) kernel-2.6.39.4-5.1 (mdv2011) runs error-free on our system without any warnings during the compilation time of around four hours! This is the best sign for good and secure running code. The only thing remaining is to patch with the dirty-cow-patch in mm.h and memory.c. 
<BR><BR>
http://repository.timesys.com/buildsources/k/kernel/kernel-2.6.39/
<BR><BR>
Kernel: We recommend kernel 4 (we chose 5.4.110 (pclos) past 4.20.13 (pclos) with mkinitrd (pclos, rosa, mga2), nash (pclos, rosa, mga2), dracut (mga6: version 044, el6: version 004 (leads into manual LUKS-password request even in the case of existing password-key-file!, mdv2011: Version 008)) and glibc (el8, pclos)), but do describe 2.6.39.4-5 now (also running on some playstations and so on) patched up to date by sources (containing the dirty-cow-patch in main), consisting of less compilation warning and no errors than 2.6.32 (el6). This mdv-kernel is described from patch-sources like http://repository.timesys.com/buildsources/k/kernel/kernel-2.6.39/, kernel itself from http://fr2.rpmfind.net/linux/kernel/v2.6/linux-2.6.39.4.tar.xz: kernel-desktop (mdv2011): glibc (pclos, mga6), module-init-tools (we recommend mdv2011, but you can also use el6, up to 3.16; append &quot;.conf&quot; to all files in /etc/modules.d; module-init-tools (mdv2011) never makes trouble with it), coreutils (el6), initscripts (mdv2011, pclos and el6 as depecited below), util-linux (mdv2011 or el6 except /bin/mount, /bin/mount and /lib64/libmount* you have to delete after enpacking the rpm (not installing!) and copying its include), kernel-firmware (pclos, slack14.2 with more than 250 MB unpacked, mga6, el6), if you want <B>plus kernel-firmware (OpenSuSE 42.1, 32 MB) plus kernel-firmware (OpenSuSE 13.2) plus linux-firmware (fc27, 35 MB) plus kernel-firmware-extra (pclos, rosa2014.1)</B>, kernel-headers (el6), kernel-doc (el6), ksymoops (OpenSuSE 12.2, mdv2011), coreutils (el6), coreutils-libs (el6), binutils (fc25, el6), nss (el7, el6, fc30), nss-softokn (el7, el6, fc30), nss-sysinit (el7, el6, fc30) und nss-softokn-freebl (el7, el6, fc30), nss-util (el7, el6, fc30), nss-tools (el7, el6, fc30) .<BR>
glibc (el8: 2.28, pclos: the actual 2.31, mga6: 2.22, fc, for printers with 32-bit driver only like Brother install glibc (2.22, el6) too and relink and delete adequately in /lib),
<BR><BR>
In order to avoid error-messages of glibc (el8) during system-boot, just remove the line LC_TIME=de_DE.UTF-8 in /etc/sysconfig/i18n ! Eventually install locales (pclos, mga7, mga6), locales-en, locales-de, ... too.
<BR><BR>
All patches for 2.6.39.4-5.1 until now are available in the internet from http://repository.timesys.com/buildsources/k/kernel/kernel-2.6.39/.<BR>
compiler-gcc5, add-timesys-bootlogo, dirty-cow, lantronix-ts1, no-setlocalversion, no-unused-but-set-variable, revert-nfsroot, timeconst.pl-eliminate-perl-warning, ltrx-image-rom and  yaffs2.   
<BR><BR>
<B>Patch</B>: patch (el6, fc27, mdv2010.1) has to be installed. Then type <B>&quot;patch -p1 &lt; ../patchname.patch &quot;</B>
<BR><BR>
But at first do the following:
<BR><BR>
<B>Actual Kernel: how to install a patched kernel-source</B>: A lot of freed partition (memory) is required, maybe plenty of Gigabyte. Download and install all binary rpm required for the kernel. Then download and enpack the kernel-source-rpm into /usr/src either by &quot;tar -xvjf kernel-source-package&quot; or file-roller. 
<BR><BR>
Two possibilites:<BR>
1) building a kernel-rpm out of the sources after applying the patches: Configure the spec-file of the installed source-rpm by adding or commenting in and out the patches to build a new binary kernel-rpm to install or update: https://www.howtoforge.de/anleitung/wie-man-einen-kernel-kompiliert-auf-fedora/. For CentOS and mdv depending on the package manager use command &quot;rpm -ba&quot; instead of &quot;rpmbuild -ba&quot; kernel-xxx.spec to create the binary..<BR>
2) Configure the sources and compile them:<BR>
A new directory named &quot;linux-kernelversion&quot; or &quot;kernel-source-kernelversion&quot; is created within /usr/src. <BR>
Link this new directory to a linking file named linux: &quot;ln -sf linux-kernelversion linux&quot; resp. &quot;ln -sf kernel-source-kernelversion linux&quot;.<BR>
Change into this directory linux resp. linux-kernelversion resp. kernel-source-xxxx and call &quot;menu oldconfig&quot;. A file .config is created to configure the kernel. Copy .config to include/config/auto.conf
<BR><BR>
If you do not know, what to enable or not, choose MM<BR> 
(M) or (CC) to load as a module wherever possible,<BR>
(A) or (CC MM) auto-load the module or<BR>
(-): resign from the module.
<BR><BR>
Example (module extraction of kernel-2.6.39-40.src.rpm)<BR>
<BR><BR>
General Preparation of Linux, kernel-2.6.39-40.src.rpm
<BR><BR>
In order to take a firewall in use, kernel support for iptables and modules should be enabled. <BR>
Open a konsole and enter one of the statements            <BR>
make menuconfig for the Dialog-GUI,     <BR>
male xconfig for tk-GUI or                     <BR>
make gconfig with GTK or<BR>
make config<BR>              
 <BR><BR>
Choose kernel options within 
<BR><BR>
Networking options ---&gt;  <BR>
[*] Network packet filtering (replaces ipchains)  <BR>
IP: Netfilter Configuration ---&gt;        <BR>
.                                <BR>
(<font color="green"><B>M</B></font>) Userspace queueing via NETLINK (EXPERIMENTAL) <BR>
(M) IP tables support (required for filtering/masq/NAT)     <BR>
(M) limit match support                              <BR>
(M) MAC address match support         <BR>
(M) netfilter MARK match support     <BR>
(M) Multiple port match support   <BR>
                            <BR>
(M) TOS match support                <BR>
(M) Connection state match support          <BR>
(M) Unclean match support (EXPERIMENTAL)     <BR>
(M) Owner match support (EXPERIMENTAL)  <BR>
(M) Packet filtering                                     <BR>
(M) REJECT target support                           <BR>
(M) MIRROR target support (EXPERIMENTAL)    <BR>
.                                    <BR>
(M) Packet mangling         <BR>
(M) TOS target support        <BR>
(M) MARK target support            <BR>
(M) LOG target support                   <BR>
(M) ipchains (2.2-style) support           <BR>
(M) ipfwadm (2.0-style) support          <BR>
                                             <BR>
think of other options (modules), store this configuration.        <BR>
             <BR>
Before iptables can be used, the kernel module netfilter for the support of iptables has to be loaded e.g. by the statement modprobe:   <BR>
# modprobe ip_tables
<BR><BR>
kernel-firmware (binary blobs within /lib/firmware, rpm kernel-firmware (around 250 MB) and/or kernel-firmware-extra ):
<BR><BR>
For kernels before 4.18:<BR>
KERNEL Enable support for Linux firmware
<BR><BR>
Device Drivers  ---&gt;<BR>
  Generic Driver Options  ---&gt;<BR>
    -*- Userspace firmware loading support<BR>
    [*]   Include in-kernel firmware blobs in kernel binary<BR>
    (/lib/firmware) Firmware blobs root directory
<BR><BR>
For kernels beginning with 4.18:<BR>
KERNEL Enable support for Linux firmware
<BR><BR>
Device Drivers  ---&gt;<BR>
  Generic Driver Options  ---&gt;<BR>
    Firmware loader ---&gt;<BR>
       -*- Firmware loading facility<BR>
       () Build named firmware blobs into the kernel binary<BR>
       (/lib/firmware) Firmware blobs root directory
<BR><BR>
Type &quot;make dep &amp;&amp; make clean &amp;&amp; make mrproper&quot; .
<BR><BR>
Type &quot;menu xconfig&quot; or &quot;menu gconfig&quot; or &quot;make menuconfig&quot; and configure the kernel-drivers and so on needed (CC), needed as modules (CC MM) and such to resign from, or for a pregiven configuration type &quot;make oldconfig&quot;.
<BR><BR>
For FSE (full system encryption) by dracut, two options have to be enabled, what is already done in kernel-desktop (mdv2011) but not kernel (el6):<BR>
within the first item &quot;General Setup&quot;enable &quot;Initial-RAM-filesystem and RAM-disk-support&quot;and in &quot;general drivers&quot; enable the option &quot;Maintain a devtmpfs at /dev/ with subitem &quot;automount devtmpfs at /dev, after the kernel mounted the rootfs&quot;.<BR>
If you do not know, what to enable or not, choose MM to load as a module wherever possible.<BR>
Save the new .config.<BR> 
Set the Kernel-Version at the top of the makefile.<BR>
Three possibilites, after the patching of the source-code like the dirty-cow-patch: <BR>
patch -p1 &lt; ../any_patch.patch<BR>
apply all other patches in this way<bR>
make -i rpm (to create the binary kernel-rpm package, what endures on our system for around four hours)<BR>
make all # or<BR>
make dep (dependency properties to establish the relationship)<BR>
make clean (to remove the old data)<BR>
make bzImage (to create its core vmlinuz for /boot only after renaming the created file bzImage: time needed: around 30 minutes) or<BR>
make bzImage &amp,&amp; make modules &amp;&amp; make modules_install for the installation of the kernel-modules too.
<BR>
Copy the bzImage to /boot, rename it to vmlinuz-kernelversion.<BR>
Use mkinitrd resp. in the case of FSE (Full Disk Encryption resp. encrypted root-partition) dracut to create the initrd resp. initramfs within directory /boot. If dracut does not work anymore ex. as a cause of updates, rename the new-kernel-version to the old-kernel-version in Makefile and make bzImage once again.<BR>
If you use grub as the bootloader and not grub2 and the configufile is still not configured for the new kernel, do this by editing /boot/grub/menu.lst and exchanging the vmlinuz-kernel-versions. If a new initramfs or initrd is created, enter them in the line for initrd.<BR>
done. 
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Installation guide and for tuning Linux secure:</B> https://wiki.kairaven.de/open/os/linux/tuxsectune and https://wiki.centos.org/HowTos/OS_Protection ( in our example related to mdv2010.2 or CentOS 6 el6 with many patches/updates by Jonny Hughes, NY ). Be careful, for example  with the exchange of the password-encryption from md5 to sha256 or sha512 and the /etc/system-auth. Make backup or copies!
<BR><BR>
Through &quot;about:config&quot; many URL can be removed out of the listing after typing in &quot;http&quot;.
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Using Compile-time-Hardening-Options</B><BR>
Several compile-time options (detailed below) can be used to help harden a resulting binary against memory corruption attacks or provide additional warning messages during compiles. Using &quot;dpkg-buildflags&quot; is the recommended way to incorporate the build flags in Debian.<BR>
See ReleaseGoals/SecurityHardeningBuildFlags for additional information, https://wiki.debian.org/ReleaseGoals/SecurityHardeningBuildFlags.<BR>
For a step-by-step guide, see the HardeningWalkthrough, https://wiki.debian.org/HardeningWalkthrough.<BR> 
Source: https://wiki.debian.org/Hardening<BR>
Fedora/CentOS etc: https://fedoraproject.org/wiki/Changes/Harden_All_Packages
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Listing: Linux-Security-Updates up from year 2000, PRO-LINUX.de</B><BR>
... of the most important distributions with naming the closed error, bug  resp. exploit<BR>
 https://www.pro-linux.de/sicherheit/1/1/1.html
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Recent LWN.net security pages</B><BR>
Here are the most recent LWN.net security pages, with a comprehensive roundup of a week&#180;s worth security-related information.<BR>
<BR><BR>
Date    Contents<BR>
Apr 12, 2017    Network security in the microservice environment; Two Project Zero reports; ..<BR>.
Apr 05, 2017    ARM pointer authentication; Quotes; Exploiting Broadcom WiFi; ...<BR>
Mar 29, 2017    refcount_t meets the network stack; Quotes; ...<BR>
Mar 22, 2017    Inline encryption support for block devices; Shim review; ..<BR>.
Mar 15, 2017    A kernel TEE party; Quotes; Struts 2 vulnerability; ...<BR>
Mar 08, 2017    A new process for CVE assignment; Smart TV bugging quotes; Threat modeling ...<BR>
Mar 01, 2017    The case of the prematurely freed SKB; SHA-1 collision and fallout; ...<BR>
Feb 22, 2017    The case against password hashers; New vulnerabilities in dropbear, kernel, nagios-core, qemu, ...<BR>
Feb 15, 2017    A look at password managers; New vulnerabilities in kernel, libevent, mysql, php, ...<BR>
Feb 08, 2017    Reliably generating good passwords; New vulnerabilities in epiphany, graphicsmagick, gstreamer (and plugins), spice, ...<BR>
Feb 01, 2017    The Internet of scary things; New vulnerabilities in ansible, chromium, kernel, mozilla, ...<BR>
Jan 25, 2017    Security training for everyone; New vulnerabilities in fedmsg, firejail, java, systemd, ...<BR>
Jan 18, 2017    Ansible and CVE-2016-9587; New vulnerabilities in bind, docker, qemu, webkit2gtk, ...<BR>
Jan 11, 2017    SipHash in the kernel; New vulnerabilities in kernel, kopete, syncthing, webkit2gtk, ...<BR>
Jan 04, 2017    Fuzzing open source; New vulnerabilities in bash, httpd, kernel, openssh, ...<BR>
Dec 22, 2016    OWASP ModSecurity Core Rule Set 3.0; New vulnerabilities in apport, kernel, libupnp, samba, ...<BR>
Dec 14, 2016    ModSecurity for web-application firewalls; New vulnerabilities in jasper, kernel, mozilla, roundcube, ...<BR>
Dec 07, 2016    Locking down module parameters; New vulnerabilities in chromium, firefox, kernel, xen, ...<BR>
Nov 30, 2016    Django debates user tracking; New vulnerabilities in drupal, firefox, kernel, ntp, ...<BR>
Nov 16, 2016    Reference-count protection in the kernel; New vulnerabilities in chromium, firefox, kernel, sudo, ...<BR>
https://lwn.net/Security/
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Setting /usr read-only for the separate usr-partition</B><BR>
If you set /usr read-only (in /etc/fstab), you will not be able to install new packages on your Debian GNU/Linux system. You will have to first remount it read-write, install the packages and then remount it read-only. apt can be configured to run commands before and after installing packages, so you might want to configure it properly.<BR>
To do this modify /etc/apt/apt.conf and add:
<BR><BR>
       DPkg<BR>
       {<BR>
           Pre-Invoke  { &quot;mount /usr -o remount,rw&quot; };<BR>
           Post-Invoke { &quot;mount /usr -o remount,ro&quot; };<BR>
       };
<BR><BR>
Note that the Post-Invoke may fail with a &quot;/usr busy&quot; error message. This happens mainly when you are using files during the update that got updated. You can find these programs by running
<BR><BR>
     # lsof +L1
<BR><BR>
Stop or restart these programs and run the Post-Invoke manually. Beware! This means you&#180;ll likely need to restart your X session (if you&#180;re running one) every time you do a major upgrade of your system. You might want to reconsider whether a read-only /usr is suitable for your system ( and please notice, that this might not be recommended, if there is an encrypted root-partition), see also this discussion on debian-devel about read-only /usr. 
<BR>
We are going to encrypt even more the complete system (FSE) by reliable LUKS, including the complete root- and home-partition (and USB-media) to set partitions unwriteable to read-only. Notice, that this does not exclude the same for a separate usr-partition. 
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>/etc/pam.d/system-auth ( tested just on our platform and system ):</B>
<BR><BR>
<font style="font-size: 9pt" color="green"> #%PAM-1.0<BR>
auth        required      pam_env.so<BR>
auth        sufficient    pam_unix.so try_first_pass likeauth<BR>
auth        required      pam_deny.so<BR>
auth        requisite     pam_succeed_if.so uid &gt;= 500 quiet<BR>
auth        required      pam_tally2.so deny=3 onerr=fail unlock_time=60<BR>
account     sufficient    pam_tcb.so shadow<BR>
account     required      pam_deny.so<BR>
account     sufficient    pam_succeed_if.so uid &lt; 500 quiet<BR>
account     required      pam_tally2.so per_user<BR>
password    required      pam_cracklib.so try_first_pass retry=3 minlen=6  dcredit=1  ucredit=0 <BR>
password    sufficient    pam_unix.so try_first_pass use_authtok sha512 shadow remember=2<BR>
password    required      pam_deny.so<BR>
session     optional      pam_keyinit.so revoke<BR>
session     required      pam_limits.so<BR>
session     [success=1 default=ignore] pam_succeed_if.so service in crond quiet use_uid<BR>
session     required      pam_unix.so</font>
<BR><BR>
More about pam-modules:<BR>
http://www.linuxdevcenter.com/pub/a/linux/2001/09/27/pamintro.html?page=2<BR>
https://linux.die.net/man/5/pam.d
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>One more things with PAM:</B><BR> 
Use encryption other than DES for your passwords (making them harder to brute-force decode).<BR> 
Set resource limits on all your users so they can&#180;t perform denial-of-service attacks (number of processes, amount of memory, etc).<BR> 
Enable shadow passwords (see below) on the fly.<BR> 
Allow specific users to login only at specific times from specific places.<BR> 
Within a few hours of installing and configuring your system, you can prevent many attacks before they even occur. For example, use PAM to disable the system-wide usage of .rhosts files in user&#180;s home directories by adding these lines to /etc/pam.d/rlogin: 
<BR><BR>
#<BR>
# Disable rsh / rlogin / rexec for users<BR>
                #<BR>
                login auth required pam_rhosts_auth.so no_rhosts
<BR><BR>
Quelle: http://www.tldp.org/HOWTO/Security-HOWTO/password-security.html#AEN698
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Account locking</B><BR>
While having strong passwords in place for user accounts can help thwart brute force attacks as mentioned previously in point 18 - Enforce strong passwords, this is only one way of slowing down this type of attack. A good indication of brute force attack is a user account that has failed to log in successfully multiple times within a short period of time, these sorts of actions should be blocked and reported. We can block these attacks by automatically locking out the account, either at the directory if in use or locally.
<BR><BR>
The pam_tally2.so PAM module can be used to lock out local accounts after a set number of failures. To get this working I have added the below line to the <B>/etc/pam.d/password-auth</B> file.
<BR><BR>
auth     required       pam_tally2.so file=/var/log/tallylog deny=3 even_deny_root unlock_time=1200
<BR><BR>
This will log all failures to the /var/log/tallylog file and lock out an account after 3 consecutive failures. By default it will not deny the root account however we can also lock out root by specifying even_deny_root (though this may not be required if you have disabled root access as per point 3 - Disable remote root access and point 4 - Disable root console access). The unlock time is the amount of seconds after a failed login attempt that an account will automatically unlock and become available again.
<BR><BR>
Failed logins can be viewed as below, to view all failures simply remove the --user flag.
<BR><BR>
[[email protected] ~]# pam_tally2 --user=bob
Login           Failures Latest failure     From
bob                 4    08/21/15 19:38:23  localhost
<BR><BR>
The failure count can be manually reset by appending -reset onto this command.
<BR><BR>
pam_tally2 --user=bob --reset
<BR><BR>
If a login is successful before the limit has been reached the failure count will reset to 0. For more details see the pam_tally2 manual page by typing &#180;man pam_tally2&#180;.
<BR><BR>
It&#180;s worth noting that the manual page advises to configure this with the /etc/pam.d/login file, however I found that under CentOS 7 this did not work and needed to use the /etc/pam.d/password-auth file instead. I also tried using /etc/pam.d/system-auth which I found documented elsewhere but this also failed, so this may differ based on your operating system.
<BR><BR>
You can also manually lock and unlock local user accounts rather than waiting for the failure limit to be reached.<BR>
Lock the user account ‘bob&#180;.https://www.rootusers.com/23-hardening-tips-to-secure-your-linux-server/#4<BR>
Quelle: https://www.rootusers.com/23-hardening-tips-to-secure-your-linux-server/
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>pam_tcb.so: Migrating from shadow passwords to tcb in Linux</B><BR>
For a more secure Linux password system, a migration from shadow passwords to tcb is worth a little extra work. Vincent Danen tells you what you need to recompile and patch.Wechsel von shadow-Passw&ouml;rtern nach tcb in Linux.<BR>
&quot;Shadow passwords have been a de facto standard with Linux distributions for years, and as well as the use of md5 passwords. However, there are drawbacks to using the traditional shadow password method, and even md5 is not as secure as it used to be. One drawback to the shadow password file is that any application that requires looking up a single shadow password (i.e., your password) also can look at everyone else&#180;s shadow passwords, which means that any compromised tool that can read the shadow file will be able to obtain everyone&#180;s shadow password.&quot;
<BR><BR>
Install pam_tcb (like pam_tcb(pclos) and other pam-module-rpm). If the encryption should be blowfish, install the package bcrypt.
<BR><BR>
Source and howto: https://www.techrepublic.com/article/migrating-from-shadow-passwords-to-tcb-in-linux/<BR>
alternatively: Migrating to tcb, http://www.opennet.ru/man.shtml?topic=tcb_convert&category=8&russian=2
<BR><BR>
After performing the howto (but still resigning from blowfish and the deletion of the shadow-files), our modified /etc/pam.d/system-auth has got the include:
<BR><BR>
<font color="green" style="font-size: 9pt">#%PAM-1.0<BR>
auth        optional      pam-mount.so try_first_pass<BR>
auth        required      pam_env.so<BR>
auth        sufficient    pam_tcb.so<BR>
auth        required      pam_deny.so<BR>
auth        requisite     pam_succeed_if.so uid &gt;= 500 quiet<BR>
auth        required      pam_tally2.so deny=3 onerr=fail unlock_time=1200<BR>
account     sufficient    pam_tcb.so<BR>
account     required      pam_deny.so<BR>
account     sufficient    pam_succeed_if.so uid &lt; 500 quiet<BR>
account     required      pam_tally2.so per_user<BR>
password    required      pam_cracklib.so try_first_pass retry=3 minlen=6  dcredit=1  ucredit=1<BR> 
password    sufficient    pam_tcb.so use_authtok tcb write_to=tcb<BR>
password    required      pam_deny.so<BR>
session     optional      pam_mount.so<BR>
session     optional      pam_keyinit.so revoke<BR>
session     required      pam_limits.so<BR>
session     [success=1 default=ignore] pam_succeed_if.so service in crond quiet use_uid<BR>
session     required      pam_tcb.so</font>
<BR><BR>
and /etc/pam.d/password-auth:
<BR><BR>
#%PAM-1.0<BR>
# This file is auto-generated.<BR>
# User changes will be destroyed the next time authconfig is run.
<BR><BR>
<font color="green" style="font-size: 9pt">auth        required      pam_env.so<BR>
auth        required      pam_tally2.so file=/var/log/tallylog deny=3 even_deny_root unlock_time=1200<BR>
auth        sufficient    pam_tcb.so shadow fork prefix=&#36;2a&#36; count=8<BR>
auth        required      pam_deny.so<BR>
account     required      pam_tcb.so<BR>
password    requisite     pam_cracklib.so try_first_pass retry=3 type=<BR>
password    sufficient    pam_tcb.so try_first_pass use_authtok sha512 shadow<BR>
password    required      pam_deny.so<BR>
session     optional      pam_keyinit.so revoke<BR>
session     required      pam_limits.so<BR>
session     [success=1 default=ignore] pam_succeed_if.so service in crond quiet use_uid<BR>
session     required      pam_tcb.so</font>
<BR><BR>
/etc/nsswitch.conf:<BR>
#<BR>
# /etc/nsswitch.conf<BR>
#<BR>
# An example Name Service Switch config file. This file should be<BR>
# sorted with the most-used services at the beginning.<BR>
#<BR>
# The entry '[NOTFOUND=return]' means that the search for an<BR>
# entry should stop if the search in the previous entry turned<BR>
# up nothing. Note that if the search failed due to some other reason<BR>
# (like no NIS server responding) then the search continues with the<BR>
# next entry.<BR>
#<BR>
# Legal entries are:<BR>
#<BR>
#       compat                  Use compatibility setup<BR>
#       nisplus or nis+         Use NIS+ (NIS version 3)<BR>
#       nis or yp               Use NIS (NIS version 2), also called YP<BR>
#       dns                     Use DNS (Domain Name Service)<BR>
#       files                   Use the local files<BR>
#       db                      Use the local database (.db) files<BR>
#       [NOTFOUND=return]       Stop searching if not found so far<BR>
#<BR>
# For more information, please read the nsswitch.conf.5 manual page.<BR>
#<BR>
<BR>
passwd:         files<BR>
shadow: files +root +surfuser -ALL <BR>
group:          files<BR>
hosts:          files [success=return] dns [success=return] <BR>
networks:       files<BR>
services:       files<BR>
protocols:      files<BR>
rpc:            files<BR>
ethers: files<BR>
netmasks:       files<BR>
netgroup:       files<BR>
publickey:      files<BR>
bootparams:     files<BR>
ipnodes: files<BR>
sendmailvars: files<BR>
automount:      files<BR>
aliases:        files
<BR>
More details about /etc/nsswitch.conf: https://docs.oracle.com/cd/E24841_01/html/820-2980/ipconfig-42.html
<BR>
You should try the originally meant &quot;shadow: tcb nisplus nis&quot; instead and set hosts to &quot;hosts: files ... dns ...&quot; into this recommended order.<BR>
and with pam_tcb.so for all pam_unix.so in /etc/pam.d/*<BR>
This all makes the computer once more mouseclick-fast and secure.
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Disable Root Console Access</B><BR>
The previous step disables remote access for the root account, however it will still be possible for root to log in through any console device. Depending on the security of your console access you may wish to leave root access in place, otherwise it can be removed by clearing the /etc/securetty file as shown below.
<BR><BR>
echo &gt; /etc/securetty
<BR><BR>
This file lists all devices that root is allowed to login to, the file must exist otherwise root will be allowed access through any communication device available whether that be console or other.
<BR><BR>
With no devices listed in this file root access has been disabled. It is important to note that this does not prevent root from logging in remotely with SSH for instance, that must be disabled as outlined in point 3 - Disable remote root access above.
<BR><BR>
Access to the console itself should also be secured, a physical console can be protected by the information covered in point 13 - Physical security.
<BR><BR>
https://www.rootusers.com/23-hardening-tips-to-secure-your-linux-server/
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Limited amount of processes</B>, source. Arch Linux<BR>
On systems with many or untrusted users, it is important to limit the number of processes each can run at once, therefore preventing fork bombs and other denial of service attacks. /etc/security/limits.conf determines how many processes each user, or group can have open, and is empty (except for useful comments) by default. adding the following lines to this file will limit all users to 100 active processes, unless they use the prlimit command to explicitly raise their maximum to 200 for that session. These values can be changed according to the appropriate number of processes a user should have running, or the hardware of the box you are administrating. Do not set the limit too low. System can malfunction.
<BR><BR>
<font style="font-size: 9pt" color="green">* soft nproc 300<BR>
* hard nporc 320<BR>
# user soft nproc 200<BR>
# user hard nproc 250 <BR>
# surfuser soft nproc 60<BR>
# surfuser hard nporc 80<BR>
toruser soft nproc 80<BR>
toruser hard nporc 100</font>
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>librepository (el6), libsafec-check (fc30, fc29): Finds unsafe APIs</B>
This once more makes computer <i>mouseclick-fast</i>!
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Virus scanner ClamAV</B>, Admin 03/20 (clamav (el6))<BR>
In order to protect Windows-Clients against the malicious internet, there are some solutions. This article introduces the best Linux-programs for it.<BR>
The secure storage of large and larger data masses is a challenge for each IT-infrastructure.<BR>
ADMIN-Magazin reported, how administrators can configure the Squid-proxy, so that he scans for viruses with ClamAV and Dansguardian. The same functions for Samba-Fileserver. You should not forget, that the scan of webtraffic and incoming E-Mail only does not care for complete security. Therefore it is still essential to run local virus scanner upon Windows-Clients.<BR>
It is not the big problem to install ClamAV, because most Linux-distributions do provide already made packages in their repositories. <BR>
https://www.admin-magazin.de/Das-Heft/2010/03/ClamAV<BR>
Reader opinion by Gooken: For a well-configured Linux, a virus scanner is only needed for Samba and especially E-Mail-clients resp. a virus scanner, even ClamAV, of course, isn&#180;t really needed at all!
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Bastille, msec, rkhunter, chkrootkit, clamav (clamscan, klamav), maldetect, checksec, seccheck, xsysinfo, smartd, nessus, tkcvs and cervisia, ...</B><BR>
At this place think of programs like bastille and msec (rosa2016.1, rosa2014.1) to check out lacks in system security, before going on with the manual configuration hook by hook. Such programs with own graphical frontends resp. wizards protocol lacks in security and are able to automatically reconfigure the system even more secure.
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Two-Factor-Authentification</B><BR>
Two factor authentication can be implemented for SSH access or other application login, it will improve login security by adding a second factor of authentication, that is the password is typically known as something you know, while the second factor may be a physical security token or mobile device which acts as something you have. The combination of something you know and something you have ensures that you are more likely who you say you are.
<BR><BR>
There are custom applications available for this such as Duo Securityand Google Authenticator as well as many others. These typically involve installing an application on a smart phone and then entering the generated code alongside your username and password when you authenticate.<BR>
Google Authenticator can be used for many other applications than just SSH, such as for WordPress login with third party plugin support.
<BR>
https://www.rootusers.com/23-hardening-tips-to-secure-your-linux-server/
<BR><BR>
... can&#180;t believe it, remark by Gooken:
<BR><BR>
As executed programs (processes), think of text processing and terminal, do already exist in the RAM...
<BR><BR>
All INTEL-CPU-generations since Celeron<BR>
<B>&quot;We can read out everything!&quot;</B>, tagesschau.de, 04.01.2017<BR>
As a consequence of a newspaper-report scientific researches from the Technical University Graz exposed the newest security-exploit in many computer processors. &quot;We were shocked ourself, that this functions&quot;, said  Michael Schwarz from TU Graz to &quot;Tagesspiegel&quot;.<BR>
By this exploit all data could be read out, that are in actual process by the computer. <B>&quot;In Principle we could read out all actually entered by the keyboard.&quot;</B> Attackers could also get <B>data from Onlinebanking</B> or <B>stored passwords</B>. &quot;Therefore they must intrude into the computer&quot;, Schwarz restricted.
<BR><BR>
<B>Serious hard lack in security in all Intel-CPUs</B>, PC-WELT, 03.01.2018<BR>
A serious hard lack was found in Intel-processors of the last 10 years (excpet the one introduced by us in our data-sheed, rem., Gooken). Its closure costs performance.<BR>
https://www.pcwelt.de/a/schwere-luecke-in-allen-intel-cpus-entdeckt,3449263<BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>What to do:</B><BR> 
Data sheed: <B>Plattform: ITX-220: is not listed in the table for exploited mainboards by Intel (1) and an exploit remaind undetected as the helping-tool for belonging system-analyzes from Intel indicated (intel-sa00086.zip for Linux) (2). Result: Modul MEI (2) can not be found (this module can be integrated by the command &quot;modprobe mei&quot; manually or within /etc/modules each boot or dracut right up from the system-start).</B>
<BR><BR> 
<B>Is there a workaround/fix?</B>
<BR><BR>
- There are patches against Meltdown for Linux ( KPTI (formerly KAISER)), Windows, and OS X. There is also work to harden software against future exploitation of Spectre, respectively to patch software after exploitation through Spectre,  https://meltdownattack.com/<BR>
- iucode-tool (pclos2018)<BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">- <B>CPU: mouseclick-fast and secure: microcode_ctl ( do not get irritated by any other versions, install fast working (microcode_ctl-1.17-33.23.el6_10.x86_64.rpm, fc29: 2.1-34, rosa2016.1) upon el6 ) or ucode-intel ( OpenSuSE, &gt;= 20190618-lp151.2.3.1.x86_64.rpm ), against ZombieLoad too (in order to get activated by console), we recommend the mouseclick-fast microcode_ctl (rosa2016.1), upon microcode_ctl (el6, rpm -i --force). Take the fastest actual microcode_ctl like microcode_ctl-1.17-33.23.el6_10.x86_64.rpm, fc29, rosa2016.1. In order to use microcode_ctl, flash the CPU by executing the command &quot;microcode_ctl -Qu&quot; each boot after entering it in /etc/rc.local or out of /usr/share/autostart. If it is not booted, the CPU will work upon its initial (default) microcode again.</B><BR>
<BR><BR>
Howto start microcode_ctl, for example add into /etc/rc.local:
<BR><BR>
echo 1 &gt; /sys/devices/system/cpu/microcode/reload<BR>
# microcode_ctl -Qu<BR>
sh /usr/libexec/microcode_ctl/reload_microcode<BR>
or<BR>
start microcode_ctl automatically each boot by belonging udev-rule (number 83).
<BR><BR>
Changelog microcode_ctl<BR>
* Fr Dez 15 2017 Petr Oros poros&#64;redhat.com - 1:1.17-25.2<BR>
- <B>Update Intel CPU microde for 06-3f-02, 06-4f-01 and 06-55-04</B><BR>
- Add amd microcode_amd_fam17h.bin data file<BR>
- Resolves: #1527357<BR>
- Intel: Tools for ME-security-exploits, 24.11.2017, https://www.pro-linux.de/news/1/25369/intel-werkzeug-f%C3%BCr-me-sicherheitsl%C3%BCcken-vorgestellt.html<BR>
- kernel-5.4.110 with mkinitrd (pclos, rosa, mga2), nash (pclos, rosa, mga2), dracut (mga6: version 044, el6: version 004 (leads into manual LUKS-password request even in the case of existing password-key-file!, mdv2011: version 008)) and the reintegrated KPTI-/KAISER-patch<BR>
- &quot;modprobe mei&quot; or start or stop the load of module mei in /etc/modules by entering resp. removing the line &quot;mei&quot; MEI in this matter was mentionded in Intel-security-checks as one part of the main risk.
<BR><BR>
After the installation of kernel-4.19 (pclos), lookout for the requirements and install missing ones like kmod (pclos): &quot;rpm -qi --requires kernel-4.19....&quot;.
<BR><BR>
- Update Firefox to 57.0.4 resp. 52.5.3-ESR (OpenSuSE) - Security fixes to address the Meltdown and Spectre timing attacks - https://blog.mozilla.org/security/2018/01/03/mitigations-landing-new-class-timing-attack/ - Require new nss 3.34 (fixed rhbz#1531031) - Disabled ARM on all Fedoras due to rhbz#1523912<BR>
- Nvidia vs. Spectre: New Nvidia-drivers protect against Spectre-CPU-attacks, https://www.pcwelt.de/a/neue-nvidia-treiber-schuetzen-vor-spectre-cpu-attacken,3449339
NVIDIA graphics drivers (USN-3521-1, https://wiki.ubuntu.com/SecurityTeam/KnowledgeBase/SpectreAndMeltdown?_ga=2.181440484.2145149635.1515760095-1741249263.1499327986)<BR>
- Webkitgtk+ (USN-3530-1)<BR>
- QEMU (USN-3560-1)<BR>
-  libvirt (USN-3561-1)<BR>
- Cloud Images: Cloud images which address CVE-2017-5753 and CVE-2017-5715 (aka Spectre) and CVE-2017-5754 (aka Meltdown) are available for https://cloud-images.ubuntu.com from for the following releases: ...
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">Beneath microcode_ctl (rosa2016.1, el6) <B>look out for actual kernel-firmware (el6) and kernel-headers (el6) too. Take those from year2020, making it all mouseclick-fast !</B> 
<BR><BR>
<IMG SRC="images/niue-muenzen.jpg" align="left" alt="niue-muenzen" title="niue-muenzen">Firewall Linfw3 against Meltdown and Spectre: Set group &quot;nobody&quot; for the group of surfuser (with primary group nobody)  and only allow surfuser with one more group of surfuser named surfgroup for example (instead of nobody) to go online. Linfw3 is able to block even root (UID: root, 0, GID: root, 0). So noone is allowed to go online through Linfw3 else surfuser with group surfgroup (instead of his primary group &quot;nobody&quot;), what prevents device drivers from exchaning data - as in this case caused by Meltdown and Spectre  To go paranoid, to make it even more confusing for kernel and CPU, set all directories and files owned by surfuser to it&#180;s primary group &quot;nobody&quot;.
<BR><BR>
<font color="red"><B>Test, if the system is secure now, protected well against Meltdown and Spectre, type into terminal the command:</B></font>
<BR><BR>
head /sys/devices/system/cpu/vulnerabilities/*  
<BR><BR>
You can update the kernel, if not.<BR>
https://www.pcwelt.de/tipps/CPU-Sicher-vor-Meltdown-Spectre-und-Co-10593390.html
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Integrate sensors and chips from mainboard:</B><BR>
Paket lm_sensors (pclos)<BR>
sensors-detect<BR>
modprobe for found modules: enter them into /etc/modules ( for ITX-220: it87, coretemp, i2c-dev, mei)<BR>
Notice: It might be mouseclick-fast and more seucre not to enter them into /etc/modules.<BR>
LAN-Chip: eventually activate it through CMOS-BIOS-Setup (default: inactive)
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Logging off idle users</B><BR>
Idle users are usually a security problem, a user might be idle maybe because he&#180;s out to lunch or because a remote connection hung and was not re-established. For whatever the reason, idle users might lead to a compromise:
<BR><BR>
   because the user&#180;s console might be unlocked and can be accessed by an intruder.
<BR><BR>
    because an attacker might be able to re-attach to a closed network connection and send commands to the remote shell (this is fairly easy if the remote shell is not encrypted as in the case of telnet).
<BR><BR>
Some remote systems have even been compromised through an idle (and detached) screen.
<BR><BR>
Automatic disconnection of idle users is usually a part of the local security policy that must be enforced. There are several ways to do this:
<BR><BR>
    If bash is the user shell, a system administrator can set a default TMOUT value (see bash(1)) which will make the shell automatically log off remote idle users. Note that it must be set with the -o option or users will be able to change (or unset) it.
<BR><BR>
    Install timeoutd and configure /etc/timeouts according to your local security policy. The daemon will watch for idle users and time out their shells accordingly.
<BR><BR>
    Install autolog and configure it to remove idle users.
<BR><BR>
The timeoutd or autolog daemons are the preferred method since, after all, users can change their default shell or can, after running their default shell, switch to another (uncontrolled) shell. 
<BR><BR>
Linux: TMOUT To Automatically Log Users Out<BR>
last updated May 18, 2011 in Categories BASH Shell, Linux
<BR><BR>
How do I auto Logout my shell user in Linux after certain minutes of inactivity?<BR>
Linux bash shell allows you to define the TMOUT environment variable. Set TMOUT to automatically log users out after a period of inactivity. The value is defined in seconds. For example,
<BR><BR>
export TMOUT=120
<BR><BR>
The above command will implement a 2 minute idle time-out for the default /bin/bash shell. You can edit your ~/.bash_profile or /etc/profile file as follows to define a 5 minute idle time out:
<BR><BR>
# set a 5 min timeout policy for bash shell<BR>
TMOUT=300<BR>
readonly TMOUT<BR>
export TMOUT
<BR><BR>
Save and close the file. The readonly command is used to make variables and functions readonly i.e. you user cannot change the value of variable called TMOUT.<BR>
How Do I Disable TMOUT?
<BR><BR>
To disable auto-logout, just set the TMOUT to zero or unset it as follows:<BR>
&#36; export TMOUT=0
<BR><BR>
or
<BR><BR>
&#36; unset TMOUT
<BR><BR>
Please note that readonly variable can only be disabled by root in /etc/profile or ~/.bash_profile<BR>
https://www.cyberciti.biz/faq/linux-tmout-shell-autologout-variable/
<BR><BR>
Or assign a value for SHELL_TIMEOUT (TMOUT) in /etc/security/msec/level.secure<BR>
SHELL_TIMEOUT=300
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Restricting access to kernel pointers in the proc filesystem</B>, source: Arch Linux<BR>
Note: linux-hardened sets kptr_restrict=2 by default rather than 0.<BR>
Enabling kernel.kptr_restrict will hide kernel symbol addresses in /proc/kallsyms from regular users without CAP_SYSLOG, making it more difficult for kernel exploits to resolve addresses/symbols dynamically. This will not help that much on a pre-compiled Arch Linux kernel, since a determined attacker could just download the kernel package and get the symbols manually from there, but if you&#180;re compiling your own kernel, this can help mitigating local root exploits. This will break some perf commands when used by non-root users (but many perf features require root access anyway). See FS#34323 for more information.<BR>
/etc/sysctl.d/50-kptr-restrict.conf<BR>
kernel.kptr_restrict = 1
<BR><BR> 
<img src="images/haekchen.png" ALT="OK" align="left" border="0">Next point <B>fstab-Option hidepid for proc</B> from source Arch Linux should be applied once more at your own risk:<BR>
<B>hidepid</B><BR>
&quot;Warning: This may cause issues for certain applications like an application running in a sandbox and Xorg.<BR>.
The kernel has the ability to hide other user-processes, normally accessible via /proc, from unprivileged users by mounting the proc filesystem with the hidepid= and gid= options documented here.<BR>
This greatly complicates an intruder&#180;s task of gathering information about running processes, whether some daemon runs with elevated privileges, whether other user runs some sensitive program, whether other users run any program at all, makes it impossible to learn whether any user runs a specific program (given the program doesn&#180;t reveal itself by its behaviour), and, as an additional bonus, poorly written programs passing sensitive information via program arguments are now protected against local eavesdroppers.<BR>
The proc group, provided by the filesystem package, acts as a whitelist of users authorized to learn other users&#180; process information. If users or services need access to /proc/<pid> directories beyond their own, add them to the group.<BR>
For example, to hide process information from other users except those in the proc group:<BR>
/etc/fstab<BR>
proc    /proc   proc    nosuid,nodev,noexec,hidepid=2,gid=proc  0  0 &quot;
<BR><BR>
<B>In the following and therefore just for our paranoid view, only some more security-points, now from debian.org, https://www.debian.org/doc/manuals/securing-debian-howto/ch1.en.html up to https://www.debian.org/doc/manuals/securing-debian-howto/ch12.en.html, might interest like:</B>
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Choose a BIOS password</B><BR>
Before you install any operating system on your computer, set up a BIOS password. After installation (once you have enabled bootup from the hard disk) you should go back to the BIOS and change the boot sequence to disable booting from floppy, CD-ROM and other devices that shouldn&#180;t boot. Otherwise a cracker only needs physical access and a boot disk to access your entire system.<BR>
Disabling booting unless a password is supplied is even better. This can be very effective if you run a server, because it is not rebooted very often. The downside to this tactic is that rebooting requires human intervention which can cause problems if the machine is not easily accessible.<BR>
Note: many BIOSes have well known default master passwords, and applications also exist to retrieve the passwords from the BIOS. Corollary: don&#180;t depend on this measure to secure console access to system. <BR>
Set
<BR><BR>
- Supervisor Password<BR>
- User Access Level from Full Access, View Only or Limited to No Access - this prevents user acsess onto the BIOS-Setup-Utility, so that no changes of the settings are possible anymore. Now the BIOS is protected.<BR>
- User Password<BR>
- Password Check from (only for BIOS-)Setup to Always
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Turn Off IPv6</B><BR>
If you&#180;re not using a IPv6 protocol, then you should disable it because most of the applications or policies not required IPv6 protocol and currently it doesn&#180;t required on the server. Go to network configuration file and add followings lines to disable it.
<BR><BR>
nano /etc/sysconfig/network<BR>
NETWORKING_IPV6=no<BR>
IPV6INIT=no
<BR><BR>
https://www.tecmint.com/linux-server-hardening-security-tips/
<BR><BR>
Boot-process: If the message &quot;Can not stat ( a named ) initscript&quot; occurs during system boot, delete this initscript through all six runlevel and in directory init.d by<BR>
rm -df /etc/rc0.d/initscript-name<BR>
rm -df /etc/rc1.d/initscript-name<BR>
...<BR>
rm -df /etc/rc6.d/initscript-name<BR>
rm -df /etc/init.d/initscript-name
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Activate resp. deactivate kernel-moduls</B><BR>
Get a listing of the kernel-modules by the terminal command lsmod.<BR>
In order to make the computer mouseclick-fast, all kernel modules without essential use have to be removed from /etc/rc.modules, while this file enpossibles to integrate modules by the command &quto;modprobe Modulname&quot; added to the last line.<BR>.
Following our example-hardware from datasheed, the control-modules it87 und i2c-dev can be disabled and the service envoking them named lm_sensors deactivated. 
<BR><BR>
<font style="font-size:9pt">
###################################################################################################################################################################################<BR>
# xorg.conf with automized hardware-detection<BR>
# WARNING: Choose view settings only, if the x-server does not start!<BR>
# Then consult /var/log/Xog.0.log and look out for errors- (EE)- and warnings (WW)!<BR>
###################################################################################################################################################################################<BR>
#<BR>
# Einzelheiten: &quot;man xorg.conf&quot;<BR>
# File generated by XFdrake (rev )<BR>
<BR>
# **********************************************************************<BR>
# Refer to the xorg.conf man page for details about the format of<BR>
# this file.<BR>
# ******<BR>
# ****************************************************************<BR>
Section &quot;ServerLayout&quot;<BR>
    Identifier     &quot;XFree86 Configured&quot;<BR>
    Screen      0  &quot;Screen0&quot; 0 0<BR>
    # InputDevice &quot;Keyboard0&quot; &quot;CoreKeyboard&quot; # commented in: hotplug<BR>
    # InputDevice &quot;Mymouse1&quot; &quot;CorePointer&quot;# commented in: hotplug<BR>
    Option &quot;AIGLX&quot; &quot;true&quot;<BR>
EndSection<BR>
<BR>
Section &quot;ServerFlags&quot;<BR>
    Option &quot;DontVTSwitch&quot; &quot;true&quot;<BR>
    Option &quot;DontZap&quot; &quot;true&quot; # disable &lt;Ctrl&gt;&lt;Alt&gt;&lt;BS&gt; (server abort)<BR>
    Option &quot;AllowMouseOpenFail&quot; &quot;true&quot; # allows the server to start up even if the mouse does not work<BR>
    DontZoom # disable &lt;Ctrl&gt;&lt;Alt&gt;&lt;KP_+&gt;/&lt;KP_-&gt; (resolution switching)<BR>
    Option &quot;DPMS&quot; &quot;true&quot;<BR>
    Option &quot;Xinerama&quot; &quot;true&quot;<BR>
    # Option &quot;DRI2&quot; &quot;true&quot;<BR>
    Option &quot;UseDefaultFontPath&quot; &quot;true&quot;<BR>
    # Option &quot;Pixmap&quot; &quot;32&quot;<BR>
    Option &quot;IgnoreABI&quot; &quot;true&quot; <BR>
    Option &quot;AutoAddDevices&quot; &quot;true&quot;<BR>
    Option &quot;AutoEnableDevices&quot; &quot;true&quot;<BR>
EndSection<BR>
<BR>
Section &quot;Files&quot;<BR>
    ModulePath &quot;/usr/lib64/xorg/modules/extensions,/usr/lib64/xorg/modules&quot;<BR>
    FontPath &quot;/usr/share/fonts/X11/misc:unscaled&quot;<BR>
    # FontPath &quot;/usr/share/fonts/X11/cyrillic&quot;<BR>
    FontPath &quot;/usr/share/fonts/X11/100dpi/:unscaled&quot;<BR>
    FontPath &quot;/usr/share/fonts/X11/75dpi/:unscaled&quot;    <BR> 
    FontPath &quot;/usr/share/fonts/X11/Type1&quot;<BR>
    FontPath &quot;/usr/share/fonts/X11/100dpi&quot;<BR>
    FontPath &quot;/usr/share/fonts/X11/75dpi&quot;<BR>
    FontPath &quot;/usr/share/fonts/truetype&quot;<BR>
    FontPath &quot;built-ins&quot;<BR>
EndSection<BR>
<BR>
Section &quot;Module&quot;<BR>
    Load &quot;dbe&quot; # Double-Buffering Extension<BR>
    Load &quot;v4l&quot; # Video for Linux<BR>
    Load &quot;type1&quot;<BR>
    Load &quot;freetype&quot;<BR>
    Load &quot;glx&quot; # 3D layer<BR>
    Load &quot;dri&quot; # direct rendering<BR>
    # Load &quot;record&quot;<BR>
    Load &quot;extmod&quot;<BR>
#  Load  &quot;speedo&quot; # Speedo fonts, this module doesn't exist in Xorg 7.0.17<BR>
# The following are deprecated/unstable/unneeded in Xorg 7.0<BR>
#  Load  &quot;ddc&quot;  # ddc probing of monitor, this should be never present, as it gets automatically loaded.<BR>
#  Load  &quot;GLcore&quot; # This should be never present, as it gets automatically loaded.<BR>
#  Load  &quot;bitmap&quot; # Should be never present, as it gets automatically loaded. This is a font module, and loading it in xorg.conf makes X try to load it twice.<BR>
    SubSection      &quot;extmod&quot;<BR>
           Option       &quot;omit xfree86-dga&quot;<BR>
    EndSubSection<BR>
EndSection<BR>
<BR>
Section &quot;Extensions&quot;<BR>
        # compiz needs Composite, but it can cause bad (end even softreset-resistant)<BR>
        # effects in some graphics cards, especially nv.<BR>
        Option &quot;Composite&quot; &quot;Enable&quot;<BR>
EndSection<BR>
<BR>
Section &quot;Monitor&quot;<BR>
    Identifier   &quot;Monitor0&quot;<BR>
    ModelName    &quot;Generic Monitor&quot;<BR>
    # HorizSync 47.7  <BR>
    # VertRefresh 59.8   <BR>
    Option &quot;PreferredMode&quot; &quot;1366&times;768&quot;<BR>
    # DisplaySize 361 203<BR>
    # Vesa values! You can comment in all following Modeline for Monitor AOC e943FwS preferred modeline (59.8 Hz vsync, 47.7 kHz hsync, ratio 16/9, 84 dpi)<BR>
   #  ModeLine &quot;1366&times;768&quot; 85.5 1366 1436 1579 1792 768 771 774 798 +hsync +vsync<BR>
    # ModeLine &quot;1368x768_120&quot;  185.67  1368 1472 1624 1880  768 769 772 823  -hSync +vsync<BR>
    # ModeLine &quot;1368x768_100&quot;  151.73  1368 1464 1616 1864  768 769 772 814  -hSync +vsync<BR>
    # ModeLine &quot;1368x768_85&quot;  125.67  1368 1456 1600 1832  768 769 772 807  -hSync +vsync<BR>
    # ModeLine &quot;1368x768_75&quot;  110.19  1368 1456 1600 1832  768 769 772 802  -hSync +vsync<BR>
    # ModeLine &quot;1368x768_60&quot;  85.86  1368 1440 1584 1800  768 769 772 795  -hSync +vsync<BR>
    ModeLine &quot;1368x768&quot;  85.86  1368 1440 1584 1800  768 769 772 795  -hSync +vsync<BR>
    # ModeLine &quot;1368x768_50&quot;  69.92  1368 1424 1568 1768  768 769 772 791  -hSync +vsync<BR>
    # Option &quot;MonitorLayout&quot; &quot;LVDS,AUTO&quot; <BR>
EndSection<BR>
<BR>
Section &quot;Device&quot;<BR>
   Identifier  &quot;Card0&quot;<BR>
   # Driver (chipset) autodetect<BR>
   VendorName  &quot;All&quot;<BR>
   BoardName   &quot;All&quot;<BR>
   # BusID       &quot;PCI:1:0:0&quot;<BR>
   # VendorName &quot;Intel Corporation&quot;<BR>
   # BoardName &quot;Intel 810 and later&quot;<BR>
   # Driver &quot;intel&quot; # one of fbdev (framebuffer device), vesa (Standard), vga, vga16, uncommon, void, dummy, ati, catalyst, nv, nvidia, nouveau, amdgpu, rendition, radeon, radeonhd, fglrx, tdfx, trident, virge, s3virge, siliconmotion, aiptek, apm, ast, fpit, glint, mutouch, qxl, r128, synaptics, v4l, wacom, xgi, ark, virtualbox, vmware, vmmouse, matrox, cirrus, aty, i810, i128, i740, ark, kyropfb, matrox, i2c-matrox, hga, riva, sst, neo, s3, openchrome (incl. unichrome), savage, sis, tseng, ... <BR>
    Screen 0<BR>
    # BusID &quot;PCI:0:2:0&quot;<BR>
    Option &quot;DPMS&quot;<BR>
    Option &quot;AccelMethod&quot; &quot;EXA&quot;<BR>
    Option &quot;AddARGBGLXVisuals&quot; &quot;true&quot;<BR>
    Option &quot;fbdev&quot; &quot;true&quot;<BR>
    Option &quot;DRI&quot; &quot;true&quot;<BR>
    ### Available Driver options<BR>
    # sw_cursor is needed for some ati and radeon cards<BR>
    # Option     &quot;sw_cursor&quot;<BR>
    # Option     &quot;hw_cursor&quot;<BR>
    # Option     &quot;NoAccel&quot;<BR>
    # Option     &quot;ShowCache&quot;<BR>
    # Option     &quot;ShadowFB&quot;<BR>
    # Option     &quot;UseFBDev&quot;<BR>
    # Option     &quot;Rotate&quot;<BR>
    # Option &quot;VideoKey&quot;<BR>
    # Option &quot;Linear Framebuffer &lt;bool&gt;<BR>
    # Option &quot;SwapbuffersWait&quot; &lt;bool&gt;<BR>
    # Option &quot;XvPreferOverlay&quot; &lt;bool&gt;<BR>
    # Option &quot;Backlight&quot; &lt;str&gt;<BR>
    # Option &quot;ColorKey&quot; &lt;i&gt;<BR>
    # Option &quot;HotPlug&quot; &quot;true&quot;<BR>
    Option &quot;XvMC&quot; &quot;true&quot;<BR>
    # Option     &quot;RelaxedFencing&quot;   &lt;bool&gt;<BR>
    # Option     &quot;RelaxedFencing&quot;        # [&lt;bool&gt;]<BR>
    # Option     &quot;Throttle&quot;              # [&lt;bool&gt;]<BR>
    # Option     &quot;ZaphodHeads&quot;           # &lt;str&gt;<BR>
    # Option     &quot;DelayedFlush&quot;          # [&lt;bool&gt;]<BR>
    # Option     &quot;TearFree&quot;              # [&lt;bool&gt;]<BR>
    # Option     &quot;PerCrtcPixmaps&quot;        # [&lt;bool&gt;]<BR>
    # Option     &quot;FallbackDebug&quot;         # [&lt;bool&gt;]<BR>
    # Option     &quot;DebugFlushBatches&quot;     # [&lt;bool&gt;]<BR>
    # Option     &quot;DebugFlushCaches&quot;      # [&lt;bool&gt;]<BR>
    # Option     &quot;DebugWait&quot;             # [&lt;bool&gt;]<BR>
    # Option     &quot;BufferCache&quot;           # [&lt;bool&gt;]<BR>
    # Option     &quot;TripleBuffer&quot;          # [&lt;bool&gt;]<BR>
    # Option &quot;DisableGLXRootClipping&quot; &quot;true&quot;<BR>
    # Option &quot;EnablePageFlip&quot; &quot;true&quot;<BR>
    # Option &quot;ColorTiling2D&quot; &quot;true&quot;<BR>
    Option &quot;TripleBuffer&quot; &quot;true&quot;<BR>
    # Option &quot;MigrationHeuristic&quot; &quot;greedy&quot;<BR>
    # Option &quot;ColorTiling&quot; &quot;true&quot;<BR>
    Option &quot;TearFree&quot; &quot;true&quot;<BR>
    Option &quot;ZaphodHeads&quot; &quot;VGA1&quot;<BR>
    # Tweaks for the xorg 7.4 (otherwise broken) &quot;intel&quot; driver<BR>
    Option &quot;Tiling&quot; &quot;no&quot;<BR>
    # Option &quot;Legacy3D&quot; &quot;false&quot;<BR>
    # compiz, beryl 3D-Support with DRI &amp;Composite<BR>
    # Option &quot;XAANoOffscreenPixmaps&quot;<BR>
    # Option &quot;AllowGLXWithComposite&quot; &quot;true&quot;<BR>
    # These two lines are (presumably) needed to prevent fonts from being scrambled<BR>
    # Option &quot;XaaNoScanlineImageWriteRect&quot; &quot;true&quot;<BR>
    # Option &quot;XaaNoScanlineCPUToScreenColorExpandFill&quot; &quot;true&quot;<BR>
EndSection<BR>
<BR>
Section &quot;Screen&quot;<BR>
    Identifier &quot;Screen0&quot;<BR>
    Device     &quot;Card0&quot;<BR>
    Monitor    &quot;Monitor0&quot;<BR>
    DefaultColorDepth 24<BR>
    Option &quot;AddARGBGLXVisuals&quot; &quot;true&quot;<BR>
    Option &quot;DisableGLXRootClipping&quot; &quot;true&quot;<BR>
    <BR>
    SubSection &quot;Display&quot;<BR>
        Depth 24<BR>
        Modes &quot;1366&times;768&quot;<BR>
    EndSubSection<BR>
    SubSection &quot;Display&quot;<BR>
        Depth 32<BR>
        Modes &quot;1366&times;768&quot;<BR>
    EndSubSection<BR>
    SubSection &quot;Display&quot;<BR>
        Depth 16<BR>
        Modes &quot;1366&times;768&quot;<BR>
    EndSubSection<BR>
    SubSection &quot;Display&quot;<BR>
        Depth 15<BR>
        Modes &quot;1366&times;768&quot;<BR>
    EndSubSection<BR>
EndSection<BR>
<BR>
Section &quot;DRI&quot;<BR>
        Mode 0666<BR>
EndSection<BR>
<BR>
Section &quot;InputDevice&quot;<BR>
    Identifier &quot;Mymouse1&quot;<BR>
    Driver &quot;mouse&quot;<BR>
    <BR>
    # Option     &quot;Device&quot; &quot;/dev/ttyS0&quot;<BR>
    Option &quot;Protocol&quot; &quot;ImPS/2&quot;<BR>
    # Option     &quot;Device&quot; &quot;/dev/psaux&quot;<BR>
    # Option     &quot;Device&quot; &quot;/dev/ttyS0&quot; <BR>
    Option &quot;Device&quot; &quot;/dev/input/mice&quot;<BR>
    Option &quot;Emulate3Buttons&quot; &quot;true&quot;<BR>
    Option &quot;CorePointer&quot;<BR>
    # Option      &quot;Protocol&quot; &quot;Auto&quot;<BR>
    # Option     &quot;Protocol&quot; &quot;ExplorerPS/2&quot;<BR>
    # Option     &quot;Protocol&quot; &quot;auto&quot;<BR>
    Option &quot;ZAxisMapping&quot; &quot;4 5&quot;<BR>
    # Option      &quot;ZAxisMapping&quot; &quot;4 5 6 7&quot;<BR>
EndSection<BR>
<BR>
Section &quot;InputDevice&quot;<BR>
    # generated from default<BR>
    Identifier &quot;Keyboard0&quot;<BR>
    Driver &quot;kbd&quot;<BR>
    Option &quot;XkbModel&quot; &quot;pc105&quot;<BR>
    Option &quot;XkbLayout&quot; &quot;de&quot;<BR>
    Option &quot;CoreKeyboard&quot;<BR>
    Option &quot;XkbRules&quot; &quot;xorg&quot;<BR>
    Option &quot;AccelerationProfile&quot; &quot;0&quot;<BR>
EndSection</font>
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Do not plug to the Internet until ready</B><BR>
The system should not be immediately connected to the Internet during installation. This could sound stupid but network installation is a common method. Since the system will install and activate services immediately, if the system is connected to the Internet and the services are not properly configured you are opening it to attack. 
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Run the minimum number of services required</B><BR>
Services are programs such as ftp servers and web servers. Since they have to be listening for incoming connections that request the service, external computers can connect to yours. Services are sometimes vulnerable (i.e. can be compromised under a given attack) and hence present a security risk. Unwanted servces might be: telnet, ftp, smbd and nmbd (Samba), portmap (NFS), automount (NFS, network file system), rexec, named (DNS), lpd (printer), inetd, ...<BR>
https://www.tecmint.com/remove-unwanted-services-from-linux/
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Set a LILO or GRUB password</B><BR>
What matters for updates, should almost be not the version of the rpm but the new release of one and the same version (backport-concept).
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>umask (see man umask): recommended values:</B><BR>
/etc/fstab: option umask 077 at least for the root- and home-Partition<BR>
~/.bashrc: umask 077 # for all user<BR>
~/.bashrc-profile: umask 077 # for all user<BR>
/etc/profile: umask 022 # to keep most of all accessible for a user
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Disable root prompt on the initramfs</B><BR>
Note: This applies to the default kernels provided for releases after Debian 3.1<BR>
Linux 2.6 kernels provide a way to access a root shell while booting which will be presented during loading the initramfs on error. This is helpful to permit the administrator to enter a rescue shell with root permissions. This shell can be used to manually load modules when autodetection fails. This behavior is the default for initramfs-tools generated initramfs. The following message will appear:
<BR><BR>
       "ALERT!  /dev/sda1 does not exist.  Dropping to a shell!
<BR><BR>
In order to remove this behavior you need to set the following boot argument:panic=0. Add this to the variable GRUB_CMDLINE_LINUX in /etc/default/grub and issue update-grub or to the append section of /etc/lilo.conf. 
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Remove root prompt on the kernel</B><BR>
Note: This does not apply to the kernels provided for Debian 3.1 as the timeout for the kernel delay has been changed to 0.<BR>
Linux 2.4 kernels provide a way to access a root shell while booting which will be presented just after loading the cramfs file system. A message will appear to permit the administrator to enter an executable shell with root permissions, this shell can be used to manually load modules wheX11-Servern autodetection fails. This behavior is the default for initrd&#180;s linuxrc. The following message will appear:
<BR><BR>
       Press ENTER to obtain a shell (waits 5 seconds)
<BR><BR>
In order to remove this behavior you need to change /etc/mkinitrd/mkinitrd.conf and set:
<BR><BR>
       # DELAY  The  number  of seconds the linuxrc script should wait to
       # allow the user to interrupt it before the system is brought up
       DELAY=0
<BR><BR>
Then regenerate your ramdisk image. You can do this for example with:
<BR><BR>
       # cd /boot
       # mkinitrd -o initrd.img-2.4.18-k7 /lib/modules/2.4.18-k7
<BR><BR>
or (preferred):
<BR><BR>
       # dpkg-reconfigure -plow kernel-image-2.4.x-yz
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Restricting console login access</B><BR>
Some security policies might force administrators to log in to the system through the console with their user/password and then become superuser (with su or sudo). This policy is implemented in Debian by editing the /etc/pam.d/login and the /etc/securetty when using PAM (make a backup, before doing this!):
<BR><BR>
/etc/pam.d/login enables the pam_securetty.so module. This module, when properly configured will not ask for a password when the root user tries to login on an insecure console, rejecting access as this user.<BR>
securetty by adding/removing the terminals to which root access will be allowed. If you wish to allow only local console access then you need console, ttyX and vc/X (if using devfs devices), you might want to add also ttySX, if you are using a serial console for local access (where X is an integer, you might want to have multiple instances. The default configuration for Wheezy includes many tty devices, serial ports, vc consoles as well as the X server and the console device. You can safely adjust this if you are not using that many consoles. You can confirm the virtual consoles and the tty devices you have by reviewing /etc/inittab . For more information on terminal devices read the Text-Terminal-HOWTO.
<BR><BR>
When using PAM, other changes to the login process, which might include restrictions to users and groups at given times, can be configured in /etc/pam.d/login. An interesting feature, that can be disabled, is the possibility to login with null (blank) passwords. This feature can be limited by removing nullok from the line:
<BR><BR>
       auth       required   pam_unix.so nullok
<BR><BR>
Our /etc/pam.d/login:
<BR><BR>
%PAM-1.0<BR>
auth       required     pam-securetty.so<BR>
auth       required     pam_tally2.so deny=3 even_deny_root unlock_time=2400<BR> 
auth       include      system-auth<BR>
account    required     pam_nologin.so<BR>
account    include      system-auth<BR>
password   include      system-auth<BR>
# pam_selinux.so close should be the first session rule<BR>
session    required     pam_selinux.so close<BR>
session    required     pam_loginuid.so<BR>
session    optional     pam_console.so<BR>
# pam_selinux.so open should only be followed by sessions to be executed in the user context<BR>
session    required     pam_selinux.so open<BR>
session    required     pam_namespace.so<BR>
session    optional     pam_keyinit.so force revoke<BR>
session    include      system-auth<BR>
-session   optional     pam_ck_connector.so
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>securetty</B><BR>
is the file, where to add or delete terminals for the login of root. If a local access by console should be allowed only, then add console, ttyX and vc/X ( if devfs-interface is used, where X is an integer ).<BR>
https://www.debian.org/doc/manuals/securing-debian-howto/ch4.de.html
<BR><BR>
The primary entry types and their affects are as follows:<BR>
If /etc/securetty doesn&#180;t exist, root is allowed to login from any tty<BR>
If /etc/securetty exist and is empty, root access will be restricted to single user mode or programs, that are not restricted by pam_securetty (i.e. su, sudo, ssh, scp, sftp)<BR>
if you are using devfs (a deprecated filesystem for handling /dev), adding entries of the form vc/[0-9]* will permit root login from the given virtual console number<BR>
if you are using udev (for dynamic device management and replacement for devfs), adding entries of the form tty[0-9]* will permit root login from the given virtual console number<BR>
listing console in securetty, normally has no effect since /dev/console points to the current console and is normally only used as the tty filename in single user mode, which is unaffected by /etc/securetty<BR>
adding entries like pts/[0-9]* will allow programs that use pseudo-terminals (pty) and pam_securetty to login into root assuming the allocated pty is one of the ones listed; it&#180;s normally a good idea not to include these entries because it&#180;s a security risk; it would allow, for instance, someone to login into root via telenet, which sends passwords in plaintext (note that pts/[0-9]* is the format for udev which is used in RHEL 5.5; it will be different if using devfs or some other form of device management)<BR>
For single user mode, /etc/securetty is not consulted because the sulogin is used instead of login. See the sulogin man page for more info. Also you can change the login program used in /etc/inittab for each runlevel.<BR>
https://unix.stackexchange.com/questions/41840/effect-of-entries-in-etc-securetty
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Restricting system reboots through the console</B><BR>
If your system has a keyboard attached to it anyone (yes anyone) with physical access to the system can reboot the system through it without login in just pressing the Ctrl+Alt+Delete keyboard combination, also known as the three finger salute. This might, or might not, adhere to your security policy.<BR>
This is aggravated in environments in which the operating system is running virtualised. In these environments, the possibility extends to users that have access to the virtual console (which might be accessed over the network). Also note that, in these environments, this keyboard combination is used constantly (to open a login shell in some GUI operating systems) and an administrator might virtually send it and force a system reboot.
<BR><BR>
There are two ways to restrict this:
<BR>
    configure it so that only allowed users can reboot the system, disable this feature completely.
<BR><BR>
If you want to restrict this, you must check the /etc/inittab so that the line that includes ctrlaltdel calls shutdown with the -a switch. <BR>
The default in Debian includes this switch:
<BR><BR>
       ca:12345:ctrlaltdel:/sbin/shutdown -t1 -a -r now
<BR><BR>
The -a switch, as the shutdown(8) manpage describes,makes it possible to allow some users to shutdown the system. For this the file /etc/shutdown.allow must be created and the administrator has to include there the name of users which can boot the system. When the three finger salute combination is pressed in a console the program will check if any of the users listed in the file are logged in. If none of them is, shutdown will not reboot the system.
<BR>
If you want to disable the Ctrl+Alt+Del combination you just need to comment the line with the ctrlaltdel definition in the /etc/inittab.<BR>
Remember to run init q after making any changes to the /etc/inittab file for the changes to take effect. 
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Restricting the use of the Magic SysRq key</B><BR>
The Magic SysRq key is a key combination that allows users connected to the system console of a Linux kernel to perform some low-level commands. These low-level commands are sent by pressing simultaneously Alt+SysRq and a command key. The SysRq key in many keyboards is labeled as the Print Screen key.<BR>
Since the Etch release, the Magic SysRq key feature is enabled in the Linux kernel to allow console users certain privileges. You can confirm this by checking if the /proc/sys/kernel/sysrq exists and reviewing its value:
<BR><BR>
     &#36; cat /proc/sys/kernel/sysrq<BR> 
     438
<BR><BR>
The default value shown above allows all of the SysRq functions except for the possibility of sending signals to processes. For example, it allow users connected to the console to remount all systems read-only, reboot the system or cause a kernel panic. In all the features are enabled, or in older kernels (earlier than 2.6.12) the value will be just 1.<BR>
You should disable this functionality ifaccess to the console is not restricted to authorised users: the console is connected to a modem line, there is easy physical access to the system or it is running in a virtualised environment and other users access the console. To do this edit the /etc/sysctl.conf and add the following lines:
<BR><BR>
     # Disables the magic SysRq key<BR>
     kernel.sysrq = 0
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>User authentication: PAM</B><BR>
PAM (Pluggable Authentication Modules) allows system administrators to choose how applications authenticate users. Note that PAM can do nothing unless an application is compiled with support for PAM. Most of the applications that are shipped with Debian have this support built in (Debian did not have PAM support before 2.2). The current default configuration for any PAM-enabled service is to emulate UNIX authentication (read /usr/share/doc/libpam0g/Debian-PAM-MiniPolicy.gz for more information on how PAM services should work in Debian).<BR>
Each application with PAM support provides a configuration file in /etc/pam.d/ which can be used to modify its behavior:
<BR><BR>
    what backend is used for authentication.
<BR><BR>
    what backend is used for sessions.
<BR><BR>
    how do password checks behave.
<BR><BR>
The following description is far from complete, for more information you might want to read the Linux-PAM Guides as a reference. This documentation is available in the system if you install the libpam-doc at /usr/share/doc/libpam-doc/html/.<BR>
PAM offers you the possibility to go through several authentication steps at once, without the user&#180;s knowledge. You could authenticate against a Berkeley database and against the normal passwd file, and the user only logs in if the authentication succeeds in both. You can restrict a lot with PAM, just as you can open your system doors very wide. So be careful. A typical configuration line has a control field as its second element. Generally it should be set to requisite, which returns a login failure if one module fails.<BR>
More about PAM: https://www.debian.org/doc/manuals/securing-debian-howto/ch4.en.html, chapter 4.11
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>User login actions: edit /etc/login.defs</B> (make a backup, before doing this!)<BR>
The next step is to edit the basic configuration and action upon user login. Note that this file is not part of the PAM configuration, it&#180;s a configuration file honored by login and su programs, so it doesn&#180;t make sense tuning it for cases where neither of the two programs are at least indirectly called (the getty program which sits on the consoles and offers the initial login prompt does invoke login).
<BR><BR>
       FAILLOG_ENAB        yes
<BR><BR>
If you enable this variable, failed logins will be logged. It is important to keep track of them to catch someone who tries a brute force attack.
<BR><BR>
       LOG_UNKFAIL_ENAB    no
<BR><BR>
If you set this variable to &#180;yes&#180; it will record unknown usernames if the login failed. It is best if you use &#180;no&#180; (the default) since, otherwise, user passwords might be inadvertenly logged here (if a user mistypes and they enter their password as the username). If you set it to &#180;yes&#180;, make sure the logs have the proper permissions (640 for example, with an appropriate group setting such as adm).
<BR><BR>
       SYSLOG_SU_ENAB      yes
<BR><BR>
This one enables logging of su attempts to syslog. Quite important on serious machines but note that this can create privacy issues as well.
<BR><BR>
       SYSLOG_SG_ENAB      yes
<BR><BR>
The same as SYSLOG_SU_ENAB but applies to the sg program.
<BR><BR>
       ENCRYPT_METHOD  SHA512
<BR><BR>
As stated above, encrypted passwords greatly reduce the problem of dictionary attacks, since you can use longer passwords. This definition has to be consistent with the value defined in /etc/pam.d/common-password. 
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>User login actions: edit /etc/pam.d/login</B> (make a backup, before doing this!)<BR>
You can adjust the login configuration file to implement an stricter policy. For example, you can change the default configuration and increase the delay time between login prompts. The default configuration sets a 3 seconds delay:
<BR><BR>
     auth       optional   pam_faildelay.so  delay=3000000
<BR><BR>
Increasing the delay value to a higher value to make it harder to use the terminal to log in using brute force. If a wrong password is typed in, the possible attacker (or normal user!) has to wait longer seconds to get a new login prompt, which is quite time consuming when you test passwords. For example, if you set delay=10000000, users will have to wait 10 seconds if they type a wrong password.
<BR><BR>
In this file you can also set the system to present a message to users before a user logs in. The default is disabled, as shown below:
<BR><BR>
     # auth       required   pam_issue.so issue=/etc/issue
<BR><BR>
If required by your security policy, this file can be used to show a standard message indicating that access to the system is restricted and user acess is logged. This kind of disclaimer might be required in some environments and jurisdictions. To enable it, just include the relevant information in the /etc/issue [24] file and uncomment the line enabling the pam_issue.so module in /etc/pam.d/login. In this file you can also enable additional features which might be relevant to apply local security policies such as:
<BR><BR>
    setting rules for which users can access at which times, by enabling the pam_time.so module and configuring /etc/security/time.conf accordingly (disabled by default),
<BR><BR>
    setup login sessions to use user limits as defined in /etc/security/limits.conf (enabled by default),
<BR><BR>
    present the user with the information of previous login information (enabled by default),
<BR><BR>
    print a message (/etc/motd and /run/motd.dynamic) to users after login in (enabled by default),
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Restricting ftp: editing /etc/ftpusers</B> (make a backup, before doing this!)<BR>
The /etc/ftpusers file contains a list of users who are not allowed to log into the host using ftp. Only use this file if you really want to allow ftp (which is not recommended in general, because it uses clear-text passwords). If your daemon supports PAM, you can also use that to allow and deny users for certain services.<BR>
A convenient way to add all system accounts to the /etc/ftpusers is to run
<BR><BR>
     &#36; awk -F : &#180;{if (&#36;3&lt;1000) print &#36;1}&#180; /etc/passwd &gt; /etc/ftpusers
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Disallow remote administrative access</B><BR>
You should also modify /etc/security/access.conf to disallow remote logins to administrative accounts. This way users need to invoke su (or sudo) to use any administrative powers and the appropriate audit trace will always be generated.<BR>
You need to add the following line to /etc/security/access.conf, the default Debian configuration file has a sample line commented out (making your system mouseclick-fast; do not forget to make a backup of this file, before doing this!).<BR>
As already described commented in in /etc/security/access.conf, for root and system user and user:<BR>:
<BR><BR>
<font style="font-size: 9pt" color="green"># User &quot;root&quot; should be denied to get access from all other sources.<BR>
- : root : ALL<BR>
- : user : ALL<BR>
- : surfuser : 127.0.0.0/24<BR>
- : toruser : 127.0.0.0/24<BR>
- : uuidd : ALL<BR>
- . messagebus: ALL<BR>
- : wheel:ALL EXCEPT LOCAL<BR>
- : ftp : ALL<BR>
- : mail : ALL<BR>
- : pop3ad : ALL<BR>
- : bin : ALL<BR>
- : daemon : ALL<BR>
- : adm : ALL<BR>
- : sync : ALL<BR>
- : halt : ALL<BR>
- : news : ALL<BR>
# All other users should be denied to get access from all sources.<BR>
: ALL : ALL</font>
<BR><BR>
Look out for other important options in this file too. Remember to enable the pam_access module for every service (or default configuration) in /etc/pam.d/ if you want your changes to /etc/security/access.conf honored. 
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Configuring syncookies</B><BR>
This option is a double-edged sword. On the one hand it protects your system against syn packet flooding; on the other hand it violates defined standards (RFCs).
<BR><BR>
     net/ipv4/tcp_syncookies = 1
<BR><BR>
If you want to change this option each time the kernel is working you need to change it in /etc/network/options by setting syncookies=yes. This will take effect when ever /etc/init.d/networking is run (which is typically done at boot time) while the following will have a one-time effect until the reboot:
<BR><BR>
     echo 1 &gt; /proc/sys/net/ipv4/tcp_syncookies # e.g. within /etc/rc.local
<BR><BR>
This option will only be available if the kernel is compiled with the CONFIG_SYNCOOKIES. All Debian kernels are compiled with this option builtin but you can verify it running:
<BR><BR>
     &#36; sysctl -A |grep syncookies<BR> 
     net/ipv4/tcp_syncookies = 1
<BR><BR>
For more information on TCP syncookies read http://cr.yp.to/syncookies.html. 
<BR><BR>
Disabling weak-end hosts issues<BR>
Systems with more than one interface on different networks can have services configured so that they will bind only to a given IP address. This usually prevents access to services when requested through any other address. However, this does not mean (although it is a common misconception) that the service is bound to a given hardware address (interface card).<BR>
This is not an ARP issue and it&#180;s not an RFC violation (it&#180;s called weak end host in RFC1122, section 3.3.4.2). Remember, IP addresses have nothing to do with physical interfaces.<BR>
On 2.2 (and previous) kernels this can be fixed with:
<BR><BR>
     # echo 1 &gt; /proc/sys/net/ipv4/conf/all/hidden<BR>
     # echo 1 &gt; /proc/sys/net/ipv4/conf/eth0/hidden<BR>
     # echo 1 &gt; /proc/sys/net/ipv4/conf/eth1/hidden
<BR><BR>     .....
On later kernels this can be fixed either with:
<BR><BR>
    iptables rules.
<BR><BR>
    properly configured routing. 
<BR><BR>
    kernel patching.
<BR><BR>
Along this text there will be many occasions in which it is shown how to configure some services (sshd server, apache, printer service...) in order to have them listening on any given address, the reader should take into account that, without the fixes given here, the fix would not prevent accesses from within the same (local) network. <BR>
https://www.debian.org/doc/manuals/securing-debian-howto/ch4.en.html
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Using tcpwrappers</B><BR>
TCP wrappers were developed when there were no real packet filters available and access control was needed. Nevertheless, they&#180;re still very interesting and useful. The TCP wrappers allow you to allow or deny a service for a host or a domain and define a default allow or deny rule (all performed on the application level). If you want more information take a look at hosts_access(5).<BR>
Many services installed in Debian are either:
<BR><BR>
    launched through the tcpwrapper service (tcpd)
<BR><BR>
    compiled with libwrapper support built-in.
<BR><BR>
On the one hand, for services configured in /etc/inetd.conf (this includes telnet, ftp, netbios, swat and finger) you will see that the configuration file executes /usr/sbin/tcpd first. On the other hand, even if a service is not launched by the inetd superdaemon, support for the tcp wrappers rules can be compiled into it. Services compiled with tcp wrappers in Debian include ssh, portmap, in.talk, rpc.statd, rpc.mountd, gdm, oaf (the GNOME activator daemon), nessus and many others.
<BR><BR>
To see which packages use tcpwrappers [31] try:
<BR><BR>
       &#36; apt-cache rdepends libwrap0
<BR><BR>
Take this into account when running tcpdchk (a very useful TCP wrappers config file rule and syntax checker). When you add stand-alone services (that are directly linked with the wrapper library) into the hosts.deny and hosts.allow files, tcpdchk will warn you that it is not able to find the mentioned services since it only looks for them in /etc/inetd.conf (the manpage is not totally accurate here).
<BR><BR>
Now, here comes a small trick, and probably the smallest intrusion detection system available. In general, you should have a decent firewall policy as a first line, and tcp wrappers as the second line of defense. One little trick is to set up a SPAWN command in /etc/hosts.deny that sends mail to root whenever a denied service triggers wrappers:
<BR><BR>
       ALL: ALL: SPAWN ( <BR>
         echo -e &quot;n<BR>
         TCP Wrappers: Connection refusedn<BR>
         By: &#36;(uname -n)n<BR>
         Process: %d (pid %p)n<BR>
         User: %un<BR>
         Host: %cn<BR>
         Date: &#36;(date)n<BR>
       &quot; | /usr/bin/mail -s "Connection to %d blocked&quot; root) &amp;
<BR><BR>
Beware: The above printed example is open to a DoS attack by making many connections in a short period of time. Many emails mean a lot of file I/O by sending only a few packets. <BR>
https://www.debian.org/doc/manuals/securing-debian-howto/ch4.en.html
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Protecting against ARP attacks</B><BR>
When you don&#180;t trust the other boxes on your LAN (which should always be the case, because it&#180;s the safest attitude) you should protect yourself from the various existing ARP attacks.<BR>
As you know the ARP protocol is used to link IP addresses to MAC addresses (see RFC826 for all the details). Every time you send a packet to an IP address an ARP resolution is done (first by looking into the local ARP cache then if the IP isn&#180;t present in the cache by broadcasting an ARP query) to find the target&#180;s hardware address. All the ARP attacks aim to fool your box into thinking that box B&#180;s IP address is associated to the intruder&#180;s box&#180;s MAC address; Then every packet that you want to send to the IP associated to box B will be send to the intruder&#180;s box...<BR>
Those attacks (ARP cache poisoning, ARP spoofing...) allow the attacker to sniff the traffic even on switched networks, to easily hijack connections, to disconnect any host from the network... ARP attacks are powerful and simple to implement, and several tools exists, such as arpspoof from the dsniff package or arpoison.<BR>
However, there is always a solution:<BR>
    Use a static ARP cache. You can set up "static" entries in your ARP cache with:
<BR><BR>
           arp -s host_name hdwr_addr
<BR><BR>
    By setting static entries for each important host in your network you ensure that nobody will create/modify a (fake) entry for these hosts (static entries don&#180;t expire and can&#180;t be modified) and spoofed ARP replies will be ignored.
    Detect suspicious ARP traffic. You can use arpwatch, karpski or more general IDS that can also detect suspicious ARP traffic (snort, prelude...).<BR>
    Implement IP traffic filtering validating the MAC address.<BR>
https://www.debian.org/doc/manuals/securing-debian-howto/ch4.de.html
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Securing FTP</B><BR>
If you really have to use FTP (without wrapping it with sslwrap or inside a SSL or SSH tunnel), you should chroot ftp into the ftp users&#180; home directory, so that the user is unable to see anything else than their own directory. Otherwise they could traverse your root file system just like if they had a shell in it. You can add the following line in your proftpd.conf in your global section to enable this chroot feature:
<BR><BR>
     DefaultRoot ~ 
<BR><BR>
Restart ProFTPd by /etc/init.d/proftpd restart and check whether you can escape from your homedir now.<BR>
To prevent ProFTPd DoS attacks using ../../.., add the following line in /etc/proftpd.conf: DenyFilter *.*/<BR>
Always remember that FTP sends login and authentication passwords in clear text (this is not an issue if you are providing an anonymous public service) and there are better alternatives in Debian for this. For example, sftp (provided by ssh). There are also free implementations of SSH for other operating systems: putty and cygwin for example.<BR>
However, if you still maintain the FTP server while making users access through SSH you might encounter a typical problem. Users accessing anonymous FTP servers inside SSH-secured systems might try to log in the FTP server. While the access will be refused, the password will nevertheless be sent through the net in clear form. To avoid that, ProFTPd developer TJ Saunders has created a patch that prevents users feeding the anonymous FTP server with valid SSH accounts. More information and patch available at: ProFTPD Patches. This patch has been reported to Debian too, see Bug #145669. <BR>
https://www.debian.org/doc/manuals/securing-debian-howto/ch-sec-services.en.html
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">Boot-break <B>kernel or haldaemon (hal, hald)?</B><BR>
The kernel (in our case 5.4.110 resp. 4.20.13) or haldaemon resp. hal from Mandriva-derivates as much as CentOS 6 is an enormous system-boot- and -shutdown-break &quot;making more or less a pause&quot; of around 30 up to 45 seconds during the system boot resp. -shutdown.<BR>
Configuration of hal:
<BR><BR>
/etc/hal.conf<BR>
&lt;!-- This configuration file controls the Hardware Abstraction Layer<BR>
     daemon - it is meant that OS vendors customize this file to reflect<BR>
     their desired policy.<BR>
  --&gt;<BR>
<BR>
&lt;haldconfig&gt;<BR>
<BR>
  &lt;!-- If true, then the device list is saved to disk such that<BR>
       properties are kept between invocations of hald.<BR>
    --&gt;<BR>
  &lt;persistent_device_list&gt;false&lt;/persistent_device_list&gt;<BR>
<BR>
  &lt;!-- Default value for storage.media_check_enabled for devices of<BR>
       capability storage - this can be overridden by .fdi files.<BR>
<BR>
       Setting this to false results a whitelist policy, e.g. media<BR>
       check is only enabled for storage devices with a .fdi file<BR>
       saying so.<BR>
<BR>
       Conversely, setting it to true results in a blacklist policy<BR>
       where media check is enabled by default but may be overridden<BR>
       by a .fdi for devices causing trouble.<BR>
  --&gt;<BR>
  &lt;storage_media_check_enabled&gt;true&lt;/storage_media_check_enabled&gt;<BR>
<BR>

  &lt;!-- Default value for storage.automount_enabled_hint for devices of<BR>
       capability storage - this can be overridden by .fdi files.<BR>
<BR>
       Setting this to false results a whitelist policy, e.g. policy<BR>
       agents should only automount storage devices with a .fdi file<BR>
       saying so.<BR>
<BR>
       Conversely, setting it to true results in a blacklist policy<BR>
       where policy agents should always automount unless this is<BR>
 explicitly overridden by .fdi for devices causing trouble.<BR>
  --&gt;<BR>
  &lt;storage_automount_enabled_hint&gt;true&lt;/storage_automount_enabled_hint&gt;<BR>
https://www.thegeekdiary.com/linux-os-service-haldaemon/
<BR><BR>
<font color="red"><B>Deprecated</B></font><BR>
As of 2011, Linux distributions such as Ubuntu,[5] Debian,[6] and Fedora and on FreeBSD,[7] and projects such as KDE,[8] GNOME and X.org are in the process of deprecating HAL as it has &quot;become a large monolithic unmaintainable mess&quot;.[5] The process is largely complete, but some use of HAL remains - Debian squeeze (Feb 2011) and Ubuntu version 10.04 remove HAL from the basic system and boot process.[9] In Linux, it is in the process of being merged into udev (main udev, libudev, and udev-extras) and existing udev and kernel functionality. The replacement for non-Linux systems such as FreeBSD is devd.<BR>
Initially a new daemon DeviceKit was planned to replace certain aspects of HAL, but in March 2009, DeviceKit was deprecated in favor of adding the same code to udev as a package: udev-extras, and some functions have now moved to udev proper.<BR>
https://en.wikipedia.org/wiki/HAL_(software)
<BR><BR>
<font color="red"><B>Disabling useless daemons in RHEL/Centos/Oracle 6 servers</B></font><BR>
HAL provides valuable attack surfaces to attackers as an intermediary to privileged operations and should be disabled unless necessary: # chkconfig haldaemon off.<BR>
The hald - Hardware Access Layer Daemon - runs several processes in order to keep track of what hardware is installed on your system. This includes polling USB Drives and &#180;hot-swap&#180; devices to check for changes along with a host of other tasks.<BR>
You might see it running on your system as follows:<BR>
2474 ? S 0:00 \_ hald-runner<BR>
2481 ? S 0:00 \_ hald-addon-acpi: listening on acpid socket /var/run/acpid.socket<BR>
2487 ? S 0:00 \_ hald-addon-keyboard: listening on /dev/input/event0<BR>
2495 ? S 41:47 \_ hald-addon-storage: polling /dev/hdc
<BR><BR>
If your system is static and the devices do not change, you can actually disable this service using a policy entry.<BR>
Create a file in your policy directory, for example /etc/hal/fdi/policy/99-custom.fdi. Add the text:
<BR><BR>
hald-addon-storage
<BR><BR>
Save and reload the hald using /etc/init.d/haldaemon restart.<BR>
And you will find that service no longer is polling your hardware.<BR>
Of course to turn it back on, remove that policy entry and restart the haldaemon again, it will be back in service.<BR>
Solution Credit: Linuxforums User cn77<BR>
www.softpanorama.org/Commercial_linuxes/RHEL/Daemons/removing_daemons_in_rhel6.shtml
<BR><BR>
udev-Regel f&uuml;r PS/2-mouse (optical mouse from Logitech&reg;)<BR>
<BR><BR>
... results from &quto;udevadm info -a -p /devices/platform/i8042/serio1/input/input12&quot;
<BR><BR>
/etc/udev/rules.d/10-ps2mouse.rules<BR> 
KERNEL==&quot;input12&quot; SUBSYSTEM==&quot;input&quot; DRIVER==&quot;&quot; ATTR{uniq}==&quot;&quot; ATTR{properties}==&quot;1&quot; ATTR{phys}==&quot;isa0060/serio1/input0&quot; ATTR{name}==&quot;ImExPS/2 Logitech Wheel Mouse&quot; ATTR{modalias}==&quot;input:b0011v0002p0006e0063-e0,1,2,k110,111,112,113,114,r0,1,6,8,amlsfw&quot; <BR>
KERNELS==&quot;serio1&quot; SUBSYSTEMS==&quot;serio&quot; DRIVERS==&quot;psmouse&quot; ATTRS{resetafter}==&quot;5&quot; ATTRS{resolution}==&quot;200&quot; ATTRS{description}==&quot;i8042 AUX port&quot; ATTRS{firmware_id}==&quot;PNP: PNP0f03 PNP0f13&quot; ATTRS{protocol}==&quot;ImExPS/2&quot; ATTRS{rate}==&quot;100&quot; ATTRS{bind_mode}==&quot;auto&quot; ATTRS{resync_time}==&quot;0&quot; ATTRS{modalias}==&quot;serio:ty01pr00id00ex00&quot;
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Secure up RPC-services</B><BR>
Deactivate RPC abschalten (or deinstall it), if not needed.<BR>
https://www.debian.org/doc/manuals/securing-debian-howto/ch-sec-services.de.html
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>haveged</B><BR> 
The haveged project is an attempt to provide an easy-to-use, unpredictable random number generator based upon an adaptation of the HAVEGE algorithm. Haveged was created to remedy low-entropy conditions in the Linux random device that can occur under some workloads, especially on headless servers.
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>tcp_wrapper for server</B>
<BR><BR>
With this package you can monitor and filter incoming requests for the SYSTAT, FINGER, FTP, TELNET, RLOGIN, RSH, EXEC, TFTP, TALK, and other network services.<BR>
It supports both 4.3BSD-style sockets and System V.4-style TLI. Praise yourself lucky if you don&#180;t know what that means.<BR>
The package provides tiny daemon wrapper programs that can be installed without any changes to existing software or to existing configuration files.  The wrappers report the name of the client host and of the requested service; the wrappers do not exchange information with the client or server applications, and impose no overhead on the actual conversation between the client and server applications.<BR>
Optional features are: access control to restrict what systems can connect to what network daemons; client user name lookups with the RFC 931 etc. protocol; additional protection against hosts that pretend to have someone elses host name; additional protection against hosts that pretend to have someone elses host address.
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Securing Squid</B><BR>
Squid is one of the most popular proxy/cache server, and there are some security issues that should be taken into account. Squid&#180;s default configuration file denies all users requests. However the Debian package allows access from &#180;localhost&#180;, you just need to configure your browser properly. You should configure Squid to allow access to trusted users, hosts or networks defining an Access Control List on /etc/squid/squid.conf, see the Squid User&#180;s Guide for more information about defining ACLs rules. Notice that Debian provides a minimum configuration for Squid that will prevent anything, except from localhost to connect to your proxy server (which will run in the default port 3128). You will need to customize your /etc/squid/squid.conf as needed. The recommended minimum configuration (provided with the package) is shown below:
<BR><BR>
     acl all src 0.0.0.0/0.0.0.0<BR>
     acl manager proto cache_object<BR>
     acl localhost src 127.0.0.1/255.255.255.255<BR>
     acl SSL_ports port 443 563<BR>
     acl Safe_ports port 80          # http<BR>
     acl Safe_ports port 21          # ftp<BR>
     acl Safe_ports port 443 563     # https, snews<BR>
     acl Safe_ports port 70          # gopher<BR>
     acl Safe_ports port 210         # wais<BR>
     acl Safe_ports port 1025-65535  # unregistered ports<BR>
     acl Safe_ports port 280         # http-mgmt<BR>X11-Server
     acl Safe_ports port 488         # gss-http<BR>
     acl Safe_ports port 591         # filemaker<BR>
     acl Safe_ports port 777         # multiling http<BR>
     acl Safe_ports port 901         # SWAT<BR>
     acl purge method PURGE<BR>
     acl CONNECT method CONNECT<BR>
     (...)<BR>
     # Only allow cachemgr access from localhost<BR>
     http_access allow manager localhost<BR>
     http_access deny manager<BR>
     # Only allow purge requests from localhost<BR>
     http_access allow purge localhost<BR>
     http_access deny purge<BR>
     # Deny requests to unknown ports<BR>
     http_access deny !Safe_ports<BR>
     # Deny CONNECT to other than SSL ports<BR>
     http_access deny CONNECT !SSL_ports<BR>
     #<BR>
     # INSERT YOUR OWN RULE(S) HERE TO ALLOW ACCESS FROM YOUR CLIENTS<BR>
     #<BR>
     http_access allow localhost<BR>
     # And finally deny all other access to this proxy<BR>
     http_access deny all<BR>
     #Default:<BR>
     # icp_access deny all<BR>
     #<BR>
     #Allow ICP queries from everyone<BR>
     icp_access allow all
<BR><BR>
You should also configure Squid based on your system resources, including cache memory (option cache_mem), location of the cached files and the amount of space they will take up on disk (option cache_dir).<BR>
Notice that, if not properly configured, someone may relay a mail message through Squid, since the HTTP and SMTP protocols are designed similarly. Squid&#180;s default configuration file denies access to port 25. If you wish to allow connections to port 25 just add it to Safe_ports lists. However, this is NOT recommended.<BR>
Setting and configuring the proxy/cache server properly is only part of keeping your site secure. Another necessary task is to analyze Squid&#180;s logs to assure that all things are working as they should be working. There are some packages in Debian GNU/Linux that can help an administrator to do this. The following packages are available in Debian 3.0 and Debian 3.1 (sarge):
<BR><BR>
    calamaris - Log analyzer for Squid or Oops proxy log files.<BR>
    modlogan - A modular logfile analyzer.<BR>
    sarg - Squid Analysis Report Generator.<BR>
    squidtaild - Squid log monitoring program.
<BR><BR>
When using Squid in Accelerator Mode it acts as a web server too. Turning on this option increases code complexity, making it less reliable. By default Squid is not configured to act as a web server, so you don&#180;t need to worry about this. Note that if you want to use this feature be sure that it is really necessary. To find more information about Accelerator Mode on Squid see the Squid User&#180;s Guide - Accelerator Mode <BR>
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Securing printing access (the lpd and lprng issue)</B><BR>
Imagine, you arrive at work, and the printer is spitting out endless amounts of paper because someone is DoSing your line printer daemon. Nasty, isn&#180;t it?<BR>
In any UNIX printing architecture, there has to be a way to get the client&#180;s data to the host&#180;s print server. In traditional lpr and lp, the client command copies or symlinks the data into the spool directory (which is why these programs are usually SUID or SGID).<BR>
In order to avoid any issues you should keep your printer servers especially secure. This means you need to configure your printer service so it will only allow connections from a set of trusted servers. In order to do this, add the servers you want to allow printing to your /etc/hosts.lpd.<BR>
However, even if you do this, the lpr daemon accepts incoming connections on port 515 of any interface. You should consider firewalling connections from networks/hosts which are not allowed printing (the lpr daemon cannot be limited to listen only on a given IP address).<BR>
Lprng should be preferred over lpr since it can be configured to do IP access control. And you can specify which interface to bind to (although somewhat weirdly).<BR>
If you are using a printer in your system, but only locally, you will not want to share this service over a network. You can consider using other printing systems, like the one provided by cups or PDQ which is based on user permissions of the /dev/lp0 device.<BR>
In cups, the print data is transferred to the server via the HTTP protocol. This means the client program doesn&#180;t need any special privileges, but does require that the server is listening on a port somewhere.<BR>
However, if you want to use cups, but only locally, you can configure it to bind to the loopback interface by changing /etc/cups/cupsd.conf:
<BR><BR>
     Listen 127.0.0.1:631 # This might not work! To go sure: Port 631 and Listen /var/run/cups/cups.sock
<BR><BR>
There are many other security options like allowing or denying networks and hosts in this config file. However, if you do not need them you might be better off just limiting the listening port. Cups also serves documentation through the HTTP port, if you do not want to disclose potential useful information to outside attackers (and the port is open) add also:
<BR><BR>
     &gt;Location /&lt;<BR>
      Order Deny,Allow<BR>
      Deny From All<BR>
      Allow From 127.0.0.1 # or try &quot;Allow &#64;LOCAL&quot;<BR>
     &lt;/Location&gt;
<BR><BR>
This configuration file can be modified to add some more features including SSL/TLS certificates and crypto. The manuals are available at http://localhost:631/ or at cups.org.<BR>
FIXME: Add more content (the article on Amateur Fortress Building provides some very interesting views).<BR>
FIXME: Check if PDG is available in Debian, and if so, suggest this as the preferred printing system.<BR>
FIXME: Check if Farmer/Wietse has a replacement for printer daemon and if it&#180;s available in Debian. <BR>
https://www.debian.org/doc/manuals/securing-debian-howto/ch-sec-services.en.html
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Securing SSH, mail-service, BIND, Apache, Finger and deactivate NIS</B><BR>
https://www.debian.org/doc/manuals/securing-debian-howto/ch-sec-services.de.html
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Administrate the services with systemd since year 2013 or by chkconfig</B><BR>
/etc/rc.local for each boot still is not registrated, so it still might not be executed, maybe the same for ip6tables and iptables. For this purpose create rc.local in /etc/init.d (by overwriting it with /etc/init.d/linfw3 for example) to change the include of previous daemon linfw3, now rc.local in /etc/init.d up to the following: start() &quot;sh /etc/init.d/rc.local&quot;, unneeded variables removed and without stop() and restart(). Set a new chkconfig-number in the commented in line at the beginning.<BR>
To be careful, registrate the service: &quot;chkconfig --add rc.local&quot;.<BR>
Generally, using this command, all services get visible in MCC -&gt; service administration.<BR>
Set the hooks to activate the needed ones only or set the runlevel 0 up to 6 for each new service manually, almost like 0-OFF 1-OFF 2-OFF 3-ON 4-ON 5-ON 6-OFF.<BR>
Notice, that all runlevel-init-scripts out of /etc/init.d/ and /etc/rcX.d can also get started (start), restarted (restart) and stopped (stop) for MDV and el6 and many other distributions manually by a command like:<BR>
&quot;sh /etc/init.d/linfw3 start&quot;.
<BR><BR>
Start of the database server mysqld (el6.remi): like rc.local above, but the bind-address has to be commented in /etc/my.cnf.<BR>
Reverse-Proxy daemon (init-script) nginx (el6): like rc.local above too, but before you do this, copy &quot;cp -axf /usr/lib/perl5/strict.pm /usr/local/share/perl5&quto; and &quot;cp -axf /usr/lib/perl5/warnings* /usr/local/share/perl5/&quot;.<BR>
Apache webserver daemon httpd (el6): like rc.local above, but modules have to be configured well, eventually remove them.<BR>
Print server daemon: cups (pclos)<BR>
LAN-server resp. - clients: samba-... (el6); samba is not required for single pc-workstations connected with a DSL-router<BR>
...
<BR><BR>
But before these init-scripts get started, configure the server in their own configuration-files in /etc !
...
<BR><BR>
Detailed includes of /etc/rc.local and one more script in /usr/sbin for ACL-access-rights are listed further below. Both will be started as runlevel-init-scripts (daemons) each boot out of /etc/init.d .
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Important access-rights each system-boot, meaning of UNIX/Linux-groups</B><BR>
Files and directories with unrestricted access-rights can be found out, even without root-rights:<BR>
The command
<BR><BR>
find / -path /proc -prune -o -type f -perm 666  
<BR><BR>
finds all files within the complete file-system except within &quot;/proc&quot;, that can be read and overwritten (write). The next one,
<BR><BR>
find / -path /proc -prune -o -type f -perm 777  
<BR><BR>
lists all such files, that are executable too. 
<BR><BR>
find / -path /proc -prune -o -type d -perm 777  
<BR><BR>
finds directores, that are ready for read and write.
<BR><BR>
Instead of giving directorese and files the full access rights (chmod 777), it is the better to use groups for the common used files by the command
<BR><BR>
chgrp [-R] [group] [file/Directory]<BR>
https://www.pcwelt.de/ratgeber/Sechs-wichtige-Sicherheitstipps-Linux-Server-9940087.html#6
<BR><BR>
777 -&gt, 770, 775 -&gt; 770, 755 -&gt, 750, 641 -&gt, 640 usw.
<BR><BR>
For this, at least following user should belong to the group of root: standard group root, uuid, lp, lpadmin, tty, user and toruser.
<BR><BR>
Be a little bit careful with this! We almost resign from this assignment of users to the group of root in main in future, but whoever wants can try to restrict even more the access rights this way...
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>chgrp changes the group of directories and files. <u>For the full access by different user and groups only the access-right 770 for directories and 660 for files have to be set only.</u></B>. 
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Important access-rights set each system boot</B><BR>
/etc/rc.local<BR>
<font color="green" style="font-size: 9pt">
chown root:root / # Notice: It would be much better to enter all chown and chmod here in /etc/permissions.secure and in the adequate form there only!<BR>
chown root:root /* # -&gt; /etc/permissions.secure<BR>
chmod 700 -R /etc/init.d<BR>
chmod 700 -R /etc/rc0.d<BR>
chmod 700 -R /etc/rc1.d<BR>
chmod 700 -R /etc/rc2.d<BR>
chmod 700 -R /etc/rc3.d<BR>
chmod 700 -R /etc/rc4.d<BR>
chmod 700 -R /etc/rc5.d<BR>
chmod 700 -R /etc/rc6.d<BR>
chmod 400 /etc/shadow*<BR>
chmod 400 path_to_encrypted_key_file_for_LUKS_encrypted_partitions<BR>
...</font>
<BR><BR>
Also set in /etc/permissions.local &quot;/usr/sbin/suexec root:root 0755&quot; (instead of 4755) ! In order to gain a first, short overview for more access-rights within /etc/rc.local set each boot ( for a second we are going to list them more in detail soon ). They do not make the system working only secure, they also do let work it <i>mouseclick-fast</i> :
<BR><BR>
<font color="green" style="font-size: 9pt">chmod 111 /# Notice: It would be much better to enter all chown and chmod here in /etc/permissions.secure and in the adequate form there only!<BR>
chmod 755 /usr # 755 needed for caffeine only, else 751<BR>
chmod 751 /bin<BR>
chmod 751 /var # resp. 750, if user belongs to the group of root<BR>
chmod 751 /sbin<BR>
chmod 751 /lib64<BR>
chmod 751 /usr/lib64<BR>
# chmod 751 -R /usr/lib64/python2.6<BR>
# chmod 751 -R /usr/lib/python2.6 # shall have got the same include as /usr/lib64/python2.6<BR>
chmod 751 /usr/lib64/kde4<BR>
chmod 751 /etc # resp. chmod 750, if the groups listed above belong to root, same for /opt and /var, but we won&#t follow this in future.<BR>
chmod 755 /etc/* # resp.chmod 750, if the groups listed above belong to root, same for /opt and /var, but we won&#t follow this in future.<BR>
chmod 755 /etc/bashrc<BR>
chmod 755 -R /etc/font*<BR>
chmod 755 /etc/group<BR>
chmod 755 /etc/nsswitch.conf<BR>
chmod 755 /etc/ld.so.preload<BR>
chmod 755 -R /etc/pango*<BR>
chmod 755 /etc/sysconfig/network<BR>
chmod 755 /etc/sysconfig/network-scripts<BR>
chmod 700 -R /etc/init.d<BR>
chmod 700 -R /etc/rc0.d<BR>
chmod 700 -R /etc/rc1.d<BR>
chmod 700 -R /etc/rc2.d<BR>
chmod 700 -R /etc/rc3.d<BR>
chmod 700 -R /etc/rc4.d<BR>
chmod 700 -R /etc/rc5.d<BR>
chmod 700 -R /etc/rc6.d<BR>
chown root:shadow /etc/shadow*<BR>
chmod 400 /etc/shadow*<BR>
chown root:root /etc/passwd*<BR>
chmod 644 /etc/passwd*<BR>
chown root:root /etc/fstab*<BR>
chmod 400 /etc/fstab*<BR>
chown root:root /etc/crypttab*<BR>
chmod 700 /etc/crypttab*<BR>
chown root:root /etc/mtab*<BR>
chmod 700 /etc/mtab*<BR>
chown root:root /etc/hosts<BR>
chmod 644 /etc/hosts<BR>
chown root:root /etc/mtab*
chmod 644 /etc/mtab* # chmod 700: kdf arbeitet nicht<BR>
chown root:root /etc/login.defs<BR>
chmod 755 /etc/login.defs<BR>
chmod 755 -R /etc/firejail<BR>
chmod 755 -R /etc/xdg*<BR>
chmod 755 -R /etc/resolv.conf<BR>
chown root:root -R /etc/modprobe*<BR>
chmod 700 -R /etc/modprobe*<BR>
chmod 751 /opt # resp. 750, if user belongs to the group of root<BR>
chmod 751 /lib<BR>
chmod 700 /root<BR>
chmod 700 -R /etc/init.d<BR>
chmod 751 /initrd<BR>
chmod 751 /misc<BR>
chmod 700 -R /boot-save<BR>
chown root:root /usr/bin<BR>
chown root:root /usr/sbin<BR>
chown root:root /usr/lib64<BR>
chown root:root /usr/lib<BR>
chown root:root /usr/libexec<BR>
chown root:root /usr/share<BR>
chown root:root /root<BR>
chmod 700 /usr/bin/xterm # terminals (except your favorite one)<BR>
chmod 700 /usr/bin/aterm<BR>
chmod 700 /usr/bin/byobu*<BR>
chmod 700 /usr/bin/terminator*<BR>
chmod 700 /usr/bin/quadkonsole*<BR>
chmod 700 /usr/bin/lxterminal*<BR>
chmod 700 /usr/bin/yakuake*<BR>
chmod 700 /usr/bin/aterm<BR>
chmod 700 /usr/bin/multi-aterm<BR>
chmod 700 /usr/bin/tcsh*<BR>
chmod 700 /usr/bin/rxvt*<BR>
chown root:firejail /usr/bin/firejail<BR>
chmod 04750 /usr/bin/firejail # For this, surfuser must be a member of the primary group named firejail of firejail !<BR>
chmod 644 /etc/passwd<BR>
chmod 644 /etc/security/msec/*.secure<BR>
chmod 711 /home<BR>
chmod 700 /home/user<BR>
chmod 700 /home/surfuser<BR>
chmod 700 /home/uuidd<BR>
chmod 700 /home/toruser<BR>
chmod 700 -R /home/user/Dokumente</font><BR>
#<BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"># from permissions (OpenSuSE, chkstat), level: secure with some changes<BR>
<font color="green" style="font-size: 9pt">
/                                                       root:root          111<BR>
/root/                                                  root:root          700<BR>
/tmp/                                                   root:root         1777<BR>
/tmp/.X11-unix/                                         root:root         1777<BR>
/tmp/.ICE-unix/                                         root:root         1777<BR>
/dev/                                                   root:root          755<BR>
/bin/                                                   root:root          751<BR>
/sbin/                                                  root:root          751<BR>
/lib/                                                   root:root          751<BR>
/etc/                                                   root:root          751<BR>
/home/                                                  root:root          711<BR>
/boot/                                                  root:root          755<BR>
/opt/                                                   root:root          751<BR>
/usr/                                                   root:root          755<BR>
/usr/local                                              root:root          755<BR>
#<BR>
# /var:<BR>
#<BR>
<BR>
/var/tmp/                                               root:root         1777<BR>
/var/log/                                               root:root          755<BR>
/var/spool/                                             root:root          755<BR>
/var/spool/mqueue/                                      root:root          700<BR>
/var/spool/news/                                        news:news          775<BR>
/var/spool/voice/                                       root:root          755<BR>
/var/spool/mail/                                        root:root         1777<BR>
/var/adm/                                               root:root          755<BR>
/var/adm/backup/                                        root:root          700<BR>
/var/cache/                                             root:root          755<BR>
/var/cache/man/                                         man:root           755<BR>
/var/run/nscd/socket                                    root:root          666<BR>
/run/nscd/socket                                        root:root          666<BR>
/var/run/sudo/                                          root:root          700<BR>
/run/sudo/                                              root:root          700<BR>
<BR>
#<BR>
# login tracking<BR>
#<BR>
/var/log/lastlog                                        root:root          644<BR>
/var/log/faillog                                        root:root          600<BR>
/var/log/wtmp                                           root:utmp          664<BR>
/var/log/btmp                                           root:utmp          600<BR>
/var/run/utmp                                           root:utmp          664<BR>
/run/utmp                                               root:utmp          664<BR>
<BR>
#<BR>
# some device files<BR>
#<BR>
<BR>
/dev/zero                                               root:root          666<BR>
/dev/null                                               root:root          666<BR>
/dev/full                                               root:root          666<BR>
/dev/ip                                                 root:root          660<BR>
/dev/initrd                                             root:disk          660<BR>
/dev/kmem                                               root:kmem          640<BR>
<BR>
#<BR>
# /etc<BR>
#<BR>
/etc/lilo.conf                                          root:root          600<BR>
/etc/passwd                                             root:root          644<BR>
/etc/shadow                                             root:shadow        400<BR>
/etc/init.d/                                            root:root          755<BR>
/etc/hosts                                              root:root          644<BR>
# Changing the hosts_access(5) files causes trouble with services<BR>
# that do not run as root!<BR>
/etc/hosts.allow                                        root:root          644<BR>
/etc/hosts.deny                                         root:root          644<BR>
/etc/hosts.equiv                                        root:root          644<BR>
/etc/hosts.lpd                                          root:root          644<BR>
/etc/ld.so.conf                                         root:root          644<BR>
/etc/ld.so.cache                                        root:root          644<BR>
<BR>
/etc/opiekeys                                           root:root          600<BR>
<BR>
/etc/ppp/                                               root:root          750<BR>
/etc/ppp/chap-secrets                                   root:root          600<BR>
/etc/ppp/pap-secrets                                    root:root          600<BR>
<BR>
# sysconfig files:<BR>
/etc/sysconfig/network/providers/                       root:root          700<BR>
<BR>
# utempter<BR>
/usr/lib/utempter/utempter                              root:utmp         2755<BR>
<BR>
# ensure correct permissions on ssh files to avoid sshd refusing<BR>
# logins (bnc#398250)<BR>
/etc/ssh/ssh_host_key                                   root:root          600<BR>
/etc/ssh/ssh_host_key.pub                               root:root          644<BR>
/etc/ssh/ssh_host_dsa_key                               root:root          600<BR>
/etc/ssh/ssh_host_dsa_key.pub                           root:root          644
/etc/ssh/ssh_host_rsa_key                               root:root          600<BR>
/etc/ssh/ssh_host_rsa_key.pub                           root:root          644<BR>
/etc/ssh/ssh_config                                     root:root          644<BR>
/etc/ssh/sshd_config                                    root:root          640<BR>
<BR>
#<BR>
# legacy<BR>
#<BR>
# new traceroute program by Olaf Kirch does not need setuid root any more.<BR>
/usr/sbin/traceroute                                    root:root          755<BR>
<BR>
# games:games 775 safe as long as we don&#180;t change files below it (#103186)<BR>
# still people do it (#429882) so root:root 755 is the consequence.<BR>
/var/games/                                             root:root         0755<BR>
<BR>
# No longer common. Set setuid bit yourself if you need it<BR>
# (#66191)<BR>
#/usr/bin/ziptool                                        root:trusted      0755<BR>
<BR>
#<BR>
# udev static devices (#438039)<BR>
#<BR>
/lib/udev/devices/net/tun                               root:root         0666<BR>
/lib/udev/devices/null                                  root:root         0666<BR>
/lib/udev/devices/ptmx                                  root:tty          0666<BR>
/lib/udev/devices/tty                                   root:tty          0666<BR>
/lib/udev/devices/zero                                  root:root         0666<BR>
<BR>
#<BR>
# named chroot (#438045)<BR>
#<BR>
/var/lib/named/dev/null                                 root:root         0666<BR>
/var/lib/named/dev/random                               root:root         0666<BR>
<BR>
# opiesu is not allowed setuid root as code quality is bad (bnc#882035)<BR>
/usr/bin/opiesu                                         root:root         0755<BR>
<BR>
# we no longer make rpm build dirs 1777<BR>
/usr/src/packages/SOURCES/                              root:root         0755<BR>
/usr/src/packages/BUILD/                                root:root         0755<BR>
/usr/src/packages/BUILDROOT/                            root:root         0755<BR>
/usr/src/packages/RPMS/                                 root:root         0755<BR>
/usr/src/packages/RPMS/alphaev56/                       root:root         0755<BR>
/usr/src/packages/RPMS/alphaev67/                       root:root         0755<BR>
/usr/src/packages/RPMS/alphaev6/                        root:root         0755<BR>
/usr/src/packages/RPMS/alpha/                           root:root         0755<BR>
/usr/src/packages/RPMS/amd64/                           root:root         0755<BR>
/usr/src/packages/RPMS/arm4l/                           root:root         0755<BR>
/usr/src/packages/RPMS/armv4l/                          root:root         0755<BR>
/usr/src/packages/RPMS/armv5tejl/                       root:root         0755<BR>
/usr/src/packages/RPMS/armv5tejvl/                      root:root         0755<BR>
/usr/src/packages/RPMS/armv5tel/                        root:root         0755<BR>
/usr/src/packages/RPMS/armv5tevl/                       root:root         0755<BR>
/usr/src/packages/RPMS/armv6l/                          root:root         0755<BR>
/usr/src/packages/RPMS/armv6vl/                         root:root         0755<BR>
/usr/src/packages/RPMS/armv7l/                          root:root         0755<BR>
/usr/src/packages/RPMS/athlon/                          root:root         0755<BR>
/usr/src/packages/RPMS/geode/                           root:root         0755<BR>
/usr/src/packages/RPMS/hppa2.0/                         root:root         0755<BR>
/usr/src/packages/RPMS/hppa/                            root:root         0755<BR>
/usr/src/packages/RPMS/i386/                            root:root         0755<BR>
/usr/src/packages/RPMS/i486/                            root:root         0755<BR>
/usr/src/packages/RPMS/i586/                            root:root         0755<BR>
/usr/src/packages/RPMS/i686/                            root:root         0755<BR>
/usr/src/packages/RPMS/ia32e/                           root:root         0755<BR>
/usr/src/packages/RPMS/ia64/                            root:root         0755<BR>
/usr/src/packages/RPMS/mips/                            root:root         0755<BR>
/usr/src/packages/RPMS/noarch/                          root:root         0755<BR>
/usr/src/packages/RPMS/pentium3/                        root:root         0755<BR>
/usr/src/packages/RPMS/pentium4/                        root:root         0755<BR>
/usr/src/packages/RPMS/powerpc64/                       root:root         0755<BR>
/usr/src/packages/RPMS/powerpc/                         root:root         0755<BR>
/usr/src/packages/RPMS/ppc64/                           root:root         0755<BR>
/usr/src/packages/RPMS/ppc/                             root:root         0755<BR>
/usr/src/packages/RPMS/s390/                            root:root         0755<BR>
/usr/src/packages/RPMS/s390x/                           root:root         0755<BR>
/usr/src/packages/RPMS/sparc64/                         root:root         0755<BR>
/usr/src/packages/RPMS/sparc/                           root:root         0755<BR>
/usr/src/packages/RPMS/sparcv9/                         root:root         0755<BR>
/usr/src/packages/RPMS/x86_64/                          root:root         0755<BR>
/usr/src/packages/SPECS/                                root:root         0755<BR>
/usr/src/packages/SRPMS/                                root:root         0755<BR>
#<BR>
# /etc<BR>
#<BR>
/etc/crontab                                            root:root          600<BR>
/etc/exports                                            root:root          644<BR>
/etc/fstab                                              root:root          400<BR>
/etc/ftpusers                                           root:root          644<BR>
/var/lib/nfs/rmtab                                      root:root          644<BR>
/etc/syslog.conf                                        root:root          600<BR>
/etc/ssh/sshd_config                                    root:root          600<BR>
# we might want to tighten that up in the future in this profile (remove the<BR>
# ability for others to read/enter)<BR>
/etc/cron.d                                             root:root          755<BR>
/etc/cron.daily                                         root:root          755<BR>
/etc/cron.hourly                                        root:root          755<BR>
/etc/cron.monthly                                       root:root          755<BR>
/etc/cron.weekly                                        root:root          755<BR>
<BR>
#<BR>
# suid system programs that need the suid bit to work:<BR>
#<BR>
/bin/su                                                 root:root         4755<BR>
# disable at and cron for users that do not belnong to the group &quot;trusted&quot;<BR>
/usr/bin/at                                             root:trusted      0750<BR>
/usr/bin/crontab                                        root:trusted      0750<BR>
/usr/bin/gpasswd                                        root:shadow       4755<BR>
/usr/bin/newgrp                                         root:root         0755<BR>
/usr/bin/passwd                                         root:shadow       4755<BR>
/usr/bin/chfn                                           root:shadow       4755<BR>
/usr/bin/chage                                          root:shadow       0755<BR>
/usr/bin/chsh                                           root:shadow       0755<BR>
/usr/bin/expiry                                         root:shadow       0755<BR>
/usr/bin/sudo                                           root:root         4755<BR>
/usr/sbin/su-wrapper                                    root:root         0755<BR>
# opie password system<BR>
# 
/usr/bin/opiepasswd                                     root:root         0755<BR>
# <BR>
/sbin/mount.nfs                                         root:root         0755<BR>
#<BR>
#<BR>
/usr/bin/fusermount                                     root:trusted      4750<BR>
# needs setuid root when using shadow via NIS:<BR>
#<BR>
/sbin/unix_chkpwd                                       root:shadow       0755<BR>
/sbin/unix2_chkpwd                                      root:shadow       0755<BR>
<BR>
# squid changes<BR>
/var/cache/squid/                                       squid:root        0750<BR>
/var/log/squid/                                         squid:root        0750<BR>
/usr/sbin/pinger                                        squid:root        0750<BR> 
+capabilities cap_net_raw=ep<BR>
/usr/sbin/basic_pam_auth                                root:shadow       2750<BR>
<BR>
# still to be converted to utempter
/usr/lib/gnome-pty-helper                               root:utmp         2755<BR>
<BR>
#<BR>
# mixed section: most of it is disabled in this permissions.secure:<BR>
#<BR>
# video<BR>
/usr/bin/v4l-conf                                       root:video        0750<BR>
<BR>
# turned off write and wall by disabling sgid tty:<BR>
/usr/bin/wall                                           root:tty          0755<BR>
/usr/bin/write                                          root:tty          0755<BR>
# thttpd: sgid + executeable only for group www. Useless...<BR>
/usr/bin/makeweb                                        root:www          2750<BR>
# pcmcia:<BR>
# Needs setuid to eject cards (#100120)<BR>
/sbin/pccardctl                                         root:trusted      4750<BR>
# gnokii nokia cellphone software<BR>
# #66209<BR>
/usr/sbin/mgnokiidev                                    root:uucp          755<BR>
# mailman mailing list software<BR>
# #66315<BR>
/usr/lib/mailman/cgi-bin/admin                          root:mailman      2755<BR>
/usr/lib/mailman/cgi-bin/admindb                        root:mailman      2755<BR>
/usr/lib/mailman/cgi-bin/edithtml                       root:mailman      2755<BR>
/usr/lib/mailman/cgi-bin/listinfo                       root:mailman      2755<BR>
/usr/lib/mailman/cgi-bin/options                        root:mailman      2755<BR>
/usr/lib/mailman/cgi-bin/private                        root:mailman      2755<BR>
/usr/lib/mailman/cgi-bin/roster                         root:mailman      2755<BR>
/usr/lib/mailman/cgi-bin/subscribe                      root:mailman      2755<BR>
/usr/lib/mailman/cgi-bin/confirm                        root:mailman      2755<BR>
/usr/lib/mailman/cgi-bin/create                         root:mailman      2755<BR>
/usr/lib/mailman/cgi-bin/editarch                       root:mailman      2755<BR>
/usr/lib/mailman/cgi-bin/rmlist                         root:mailman      2755<BR>
/usr/lib/mailman/mail/mailman                           root:mailman      2755<BR>
<BR>
# libgnomesu (#75823, #175616)<BR>
/usr/lib/libgnomesu/gnomesu-pam-backend                 root:root         4755<BR>
<BR>
#<BR>
# networking (need root for the privileged socket)<BR>
#<BR>
/usr/bin/ping                                           root:root         0755<BR>
+capabilities cap_net_raw=ep<BR>
/usr/bin/ping6                                          root:root         0755<BR>
+capabilities cap_net_raw=ep<BR>
# mtr is linked against ncurses. no suid bit, for root only:<BR>
/usr/sbin/mtr                                           root:dialout      0750<BR>
/usr/bin/rcp                                            root:root         0000<BR>
/usr/bin/rlogin                                         root:root         0000<BR>
/usr/bin/rsh                                            root:root         0000<BR>
<BR>
# exim<BR>
/usr/sbin/exim                                          root:root         0755<BR>
<BR>
#<BR>
# dialup networking programs<BR>
#<BR>
/usr/sbin/pppoe-wrapper                                 root:dialout      4750<BR>
# i4l package (#100750):<BR>
/sbin/isdnctrl                                          root:dialout      4750<BR>
# #66111<BR>
/usr/bin/vboxbeep                                       root:trusted      0755<BR>
<BR>
#<BR>
# linux text console utilities<BR>
# <BR>
# setuid needed on the text console to set the terminal content on ctrl-o<BR>
# #66112<BR>
/usr/lib/mc/cons.saver                                  root:root         0755<BR>
<BR>
#<BR>
# terminal emulators<BR>
# This and future SUSE products have support for the utempter, a small helper<BR>
# program that does the utmp/wtmp update work with the necessary rights.<BR>
# The use of utempter obsoletes the need for sgid bits on terminal emulator<BR>
# binaries. We mention screen here, but all other terminal emulators have<BR>
# moved to /etc/permissions, with modes set to 0755.<BR>
<BR>
# needs setuid to access /dev/console<BR>
# framebuffer terminal emulator (japanese)<BR>
/usr/bin/jfbterm                                        root:tty          0755<BR>
<BR>
#<BR>
# kde<BR>
# (all of them are disabled in permissions.secure except for <BR>
# the helper programs)<BR>
#<BR>
# needs setuid root when using shadow via NIS:<BR>
# #66218<BR>
/usr/lib/kde4/libexec/kcheckpass                        root:shadow       4755<BR>
/usr/lib64/kde4/libexec/kcheckpass                      root:shadow       4755<BR>
/usr/lib/kde4/libexec/kdesud                            root:nogroup      2755<BR>
/usr/lib64/kde4/libexec/kdesud                          root:nogroup      2755<BR>
/usr/lib/libexec/kf5/kdesud                             root:nogroup      2755<BR>
/usr/lib64/libexec/kf5/kdesud                           root:nogroup      2755<BR>
<BR>
# bnc#523833<BR>
/usr/lib/kde4/libexec/start_kdeinit                     root:root         4755<BR>
/usr/lib64/kde4/libexec/start_kdeinit                   root:root         4755<BR>
<BR>
#<BR>
# amanda<BR>
#<BR>
/usr/sbin/amcheck                                       root:amanda       0750<BR>
/usr/lib/amanda/calcsize                                root:amanda       0750<BR>
/usr/lib/amanda/rundump                                 root:amanda       0750<BR>
/usr/lib/amanda/planner                                 root:amanda       0750<BR>
/usr/lib/amanda/runtar                                  root:amanda       0750<BR>
/usr/lib/amanda/dumper                                  root:amanda       0750<BR>
/usr/lib/amanda/killpgrp                                root:amanda       0750<BR>
<BR>
#<BR>
# gnats<BR>
#<BR>
/usr/lib/gnats/gen-index                                gnats:root        4555<BR>
/usr/lib/gnats/pr-edit                                  gnats:root        4555<BR>
/usr/lib/gnats/queue-pr                                 gnats:root        4555<BR>
<BR>
<BR>
#<BR>
# news (inn)<BR>
#<BR>
# the inn start script changes it&#180;s uid to news:news. Later innbind<BR>
# is called by this user. Those programs do not need to be called by<BR>
# anyone else, therefore the strange permissions 4554 are required<BR>
# for operation. (#67032, #594393)<BR>
#<BR>
/usr/lib/news/bin/rnews                                 news:uucp         4550<BR>
/usr/lib/news/bin/inews                                 news:news         2555<BR>
/usr/lib/news/bin/innbind                               root:news         4550<BR>
<BR>
#<BR>
# sendfax<BR>
#<BR>
# restrictive, only for &quot;trusted&quot; group users:<BR>
/usr/lib/mgetty+sendfax/faxq-helper                     fax:root          4755<BR>
/var/spool/fax/outgoing/                                fax:root          0755<BR>
/var/spool/fax/outgoing/locks                           fax:root          0755<BR>
<BR>
#<BR>
# uucp<BR>
#<BR>
/var/spool/uucppublic/                                  root:uucp         1770<BR>
/usr/bin/uucp                                           uucp:uucp         6555<BR>
/usr/bin/uuname                                         uucp:uucp         6555<BR>
/usr/bin/uustat                                         uucp:uucp         6555<BR>
/usr/bin/uux                                            uucp:uucp         6555<BR>
/usr/lib/uucp/uucico                                    uucp:uucp         6555<BR>
/usr/lib/uucp/uuxqt                                     uucp:uucp         6555<BR>
<BR>
# pcp (bnc#782967)<BR>
/var/lib/pcp/tmp/                                       root:root         0755<BR>
/var/lib/pcp/tmp/pmdabash/                              root:root         0755<BR>
/var/lib/pcp/tmp/mmv/                                   root:root         0755<BR>
/var/lib/pcp/tmp/pmlogger/                              root:root         0755<BR>
/var/lib/pcp/tmp/pmie/                                  root:root         0755<BR>
<BR>
# PolicyKit (#295341)<BR>
/usr/lib/PolicyKit/polkit-set-default-helper            polkituser:root   4755<BR>
/usr/lib/PolicyKit/polkit-read-auth-helper              root:polkituser   2755<BR>
/usr/lib/PolicyKit/polkit-revoke-helper                 root:polkituser   2755<BR>
/usr/lib/PolicyKit/polkit-explicit-grant-helper         root:polkituser   2755<BR>
/usr/lib/PolicyKit/polkit-grant-helper                  root:polkituser   2755<BR>
/usr/lib/PolicyKit/polkit-grant-helper-pam              root:polkituser   4750<BR>
<BR>
# polkit new (bnc#523377)<BR>
/usr/lib/polkit-1/polkit-agent-helper-1                 root:root         4755<BR>
/usr/bin/pkexec                                         root:root         4755<BR>
<BR>
# dbus-1 (#333361)<BR>
/lib/dbus-1/dbus-daemon-launch-helper                   root:messagebus   4750<BR>
/lib64/dbus-1/dbus-daemon-launch-helper                 root:messagebus   4750<BR>
# dbus-1 in /usr #1056764)<BR>
/usr/lib/dbus-1/dbus-daemon-launch-helper               root:messagebus   4750<BR>
/usr/lib64/dbus-1/dbus-daemon-launch-helper             root:messagebus   4750<BR>
<BR>
# policycoreutils (#440596)<BR>
/usr/bin/newrole                                        root:root         0755<BR>
<BR>
# VirtualBox (#429725)<BR>
/usr/lib/virtualbox/VirtualBox                          root:vboxusers    0755<BR>
# bsc#1120650<BR>
/usr/lib/virtualbox/VirtualBoxVM                        root:vboxusers    0750<BR>
/usr/lib/virtualbox/VBoxHeadless                        root:vboxusers    0755<BR>
/usr/lib/virtualbox/VBoxSDL                             root:vboxusers    0755<BR>
# (bnc#533550)<BR>
/usr/lib/virtualbox/VBoxNetAdpCtl                       root:vboxusers    0755<BR>
# bnc#669055<BR>
/usr/lib/virtualbox/VBoxNetDHCP                         root:vboxusers    0755<BR>
# bsc#1033425<BR>
/usr/lib/virtualbox/VBoxNetNAT                          root:vboxusers    0755<BR>
<BR>
# open-vm-tools (bnc#474285)<BR>
/usr/bin/vmware-user-suid-wrapper                       root:root         0755<BR>
<BR>
# lockdev (bnc#588325)<BR>
/usr/sbin/lockdev                                       root:lock         2755<BR>
<BR>
# hawk (bnc#665045)<BR>
/usr/sbin/hawk_chkpwd                                   root:haclient     4750<BR>
/usr/sbin/hawk_invoke                                   root:haclient     4750<BR>
<BR>
# chromium (bnc#718016)<BR>
/usr/lib/chrome_sandbox                                 root:root         4755<BR>
<BR>
# ecryptfs-utils (bnc#740110)<BR>
/sbin/mount.ecryptfs_private                            root:root         0755<BR>
<BR>
# wireshark (bsc#957624)<BR>
/usr/bin/dumpcap                                        root:wireshark    0750<BR>
+capabilities cap_net_raw,cap_net_admin=ep<BR>
<BR>
# singularity (bsc#1028304)<BR>
# these have been dropped in version 2.4 (see bsc#1111411, comment 4)<BR>
#/usr/lib/singularity/bin/expand-suid                   root:singularity  4750<BR>
#/usr/lib/singularity/bin/create-suid                   root:singularity  4750<BR>
#/usr/lib/singularity/bin/export-suid                   root:singularity  4750<BR>
#/usr/lib/singularity/bin/import-suid                   root:singularity  4750<BR>
/usr/lib/singularity/bin/action-suid                    root:singularity  4750<BR>
/usr/lib/singularity/bin/mount-suid                     root:singularity  4750<BR>
/usr/lib/singularity/bin/start-suid                     root:singularity  4750<BR>
<BR>
/usr/bin/su                                             root:root         4755<BR>
/usr/bin/mount                                          root:root         4755<BR>
/usr/bin/umount                                         root:root         4755<BR>
<BR>
# cdrecord of cdrtools from Joerg Schilling (bnc#550021)<BR>
# in secure mode, no provisions are made for reliable cd burning, as admins<BR>
# will have very likely prohibited that anyway.<BR>
/usr/bin/cdrecord                                       root:root       755<BR>
/usr/bin/readcd                                         root:root       755<BR>
/usr/bin/cdda2wav                                       root:root       755<BR>
<BR>
# qemu-bridge-helper (bnc#765948, bsc#988279)<BR>
/usr/lib/qemu-bridge-helper                             root:kvm        04750<BR>
<BR>
# systemd-journal (bnc#888151)<BR>
/var/log/journal/                                       root:systemd-journal    2755<BR>
<BR>
#iouyap (bnc#904060)<BR>
/usr/lib/iouyap                                         root:iouyap     0750<BR>
<BR>
# radosgw (bsc#943471)<BR>
/usr/bin/radosgw                                        root:www        0750<BR>
+capabilities cap_net_bind_service=ep<BR>
<BR>
# gstreamer ptp (bsc#960173)<BR>
/usr/lib/gstreamer-1.0/gst-ptp-helper                   root:root       0755<BR>
+capabilities cap_net_bind_service=ep<BR>
<BR>
#<BR>
# suexec is only secure if the document root doesn&#180;t contain files<BR>
# writeable by wwwrun. Make sure you have a safe server setup<BR>
# before setting the setuid bit! See also<BR>
# https://bugzilla.novell.com/show_bug.cgi?id=263789<BR>
# http://httpd.apache.org/docs/trunk/suexec.html<BR>
# You need to override this in permissions.local.<BR>
# suexec2 is a symlink for now, leave as-is<BR>
#<BR>
/usr/sbin/suexec                                        root:root       0755<BR>
<BR>
# newgidmap / newuidmap (bsc#979282, bsc#1048645)<BR>
/usr/bin/newgidmap                                      root:shadow     4755<BR>
/usr/bin/newuidmap                                      root:shadow     4755<BR>
<BR>
# kwayland (bsc#1062182)<BR>
/usr/bin/kwin_wayland                                   root:root       0755<BR>
+capabilities cap_sys_nice=ep<BR>
<BR>
# gvfs (bsc#1065864)<BR>
/usr/lib/gvfs/gvfsd-nfs                                 root:root       0755<BR>
<BR>
# icinga2 (bsc#1069410)<BR>
/run/icinga2/cmd                                        icinga:icingagmd 2750<BR>
<BR>
# fping (bsc#1047921)<BR>
/usr/sbin/fping                                         root:root       0755<BR>
+capabilities cap_net_raw=ep<BR>
<BR>
# usbauth (bsc#1066877)<BR>
/usr/bin/usbauth-npriv                                  root:usbauth    04750<BR>
/usr/lib/usbauth-notifier                               root:usbauth-notifier  0750<BR>
/usr/lib/usbauth-notifier/usbauth-notifier              root:usbauth    02755<BR>
<BR>
# spice-gtk (bsc#1101420)<BR>
/usr/bin/spice-client-glib-usb-acl-helper               root:kvm        04750<BR>
<BR>
# smc-tools (bsc#1102956)<BR>
/usr/lib/libsmc-preload.so                              root:root       04755<BR>
/usr/lib64/libsmc-preload.so                            root:root       04755<BR>
<BR>
# lxc (bsc#988348)<BR>
/usr/lib/lxc/lxc-user-nic                               root:kvm        04750<BR>
<BR>
# firejail (bsc#1059013)
/usr/bin/firejail                                       root:firejail   04750 # For this, surfuser must be member of the primary group named firejail of firejail !<BR>
<BR>
# authbind (bsc#1111251)<BR>
/usr/lib/authbind/helper                                root:root       04755<BR>
<BR>
# fuse3 (bsc#1111230)<BR>
/usr/bin/fusermount3                                    root:trusted    04750<BR>
<BR>
# 389-ds (bsc#1111564)<BR>
/usr/sbin/ns-slapd                                      root:dirsrv     0750<BR>
/                                                       root:root         111<BR>
/home                                                   root:root         711<BR>
/home/user                                            user:user     700<BR>
/home/surfuser                                          surfuser:surfuser 700<BR>
/home/toranonym                                         toruser:torgroup 700 <BR>
/usr/src                                                root:root         700<BR>
/usr/lib64                                              root:root         751<BR>
/usr/lib64/kde4                                         root:root         751<BR>
/usr                                                    root:root         755<BR>
/bin                                                    root:root         751<BR>
/sbin                                                   root:root         751<BR>
/lib64                                                  root:root         751<BR>
/lib                                                    root:root         751<BR>
/root                                                   root:root         700<BR>
/initrd                                                 root:root         751<BR>
/misc                                                   root:root         751<BR>
/boot-save                                              root:root         000<BR>
/usr/games                                              root:root         751<BR>
/net                                                    root:root         751<BR>
/secoff                                                 root:root         710<BR>
/sid-root                                               root:root         700<BR>
/srv                                                    root:root         751<BR>
/sys                                                    root:root         751<BR>
/var                                                    root:root         751<BR>
/mnt                                                   root:root         755<BR>
/media                                                root:root         711<BR>
/initrd                                                 root:root         751<BR>
/etc/security/msec/*.secure                             root:root         751<BR>
/usr/local                                              root:root         755<BR>
/usr/local/Brother                                      root:root         755<BR>
/GenuineIntel.bin                                       root:root         710<BR>
/Module.symvers                                         root:root         751<BR>
/usr/lib/cups                                           root:sys         755<BR>
/usr/share/cups                                         root:sys         755<BR>
/etc/cups                                               root:sys         755<BR>
/smack                                                  root:root         700<BR>
/usr/share                                              root:root         755<BR>
/usr/share/*                                            root:root         755<BR>
/usr/libexec                                            root:root         751<BR>
/usr/libexec/*                                          root:root         755<BR>
/usr/lib64/kde4                                         root:root         751<BR>
/home/user/Dokumente                                  user:user     700<BR>
/home/user/Dokumente/*                                 user:user     700<BR>
/home/user/.kde4                                      user:user     700<BR>
/home/user/.kde4/*                                    user:user     700<BR>
/home/user/.kde4/share/apps/kmail/mail              user:user    700<BR>
/home/user/.kde4/share/apps/kmail/mail/*/*/*        user:user    700<BR>
/home/surfuser/.mozilla                                 surfuser:surfuser 100<BR>
/var/cache                                              root:root         755<BR>
/var/cache/cups                                         root:sys         775<BR>
/var/cache/cups/ppds.dat                                lp:sys           755<BR>
/var/cache/cups/job.cache                               root:sys      755<BR>
/var/cache/cups/help.index                              lp:sys           755<BR>
/var/cache/pdnsd                                        pdnsd:pdnsd       755<BR>
/var/cache/pdnsd/pdnsd.cache                            pdnsd:pdnsd       755<BR>
/var/cache/coolkey                                      root:root         755<BR>
/var/cache/urpmi                                        root:root         755<BR>
/var/cache/apparmor                                     root:root         755<BR>
/home/uuidd                                             uuidd:uuidd       700<BR>
/usr/libexec                                            root:root         755<BR>
/usr/lib/cups/filter                                    root:sys         755 # Gruppe sys, abh&auml;ngig von /etc/cups/cupsd.conf<BR>
/usr/lib/cups/filter/*                                  root:sys         755<BR>
/usr/lib/cups/driver                                    root:sys         755<BR>
/usr/lib/cups/driver/*                                  root:sys         755<BR>
/usr/share/cups/                                       root:sys         755<BR>
/usr/share/cups/*                                      root:sys         755<BR>
/usr/share/cups/model/                                 root:sys         755<BR>
/var/spool                                              root:root         755<BR>
/var/spool/MailScanner                                  root:root         755<BR>
/usr/lib/cups/filter/*                                 root:sys          755<BR>
/usr/lib/cups/driver/*                                root:sys          755<BR>
/usr/share/cups/*                                       root:sys         755<BR>
/etc/cups                                               root:sys         755<BR>
/etc/cups/*                                             root:sys         755<BR>
/var/cache/cups                                         root:sys      775<BR>
/var/cache/cups/rss                                     root:sys      775<BR>
/lib64/ld*.so                                       root:root        755<BR>
/lib64/libc-*.so                                     root:root        755<BR>
/usr/lib64/kde4                                         root:root         751<BR>
/usr/lib64/kde4/*                                       root:root         755<BR>
/usr/share                                              root:root         755<BR>
/usr/games                                            root:root          751<BR>
/etc/security/msec/*.secure                    root:root           751<BR>
/usr/local                                               root:root          755<BR>
/usr/share/*                                            root:root        755</font>
<BR><BR>
Start permissions for example in /etc/rc.local: <B>chkstat --set --no-fscaps /etc/permissions</B> # rpm &quot;permissions&quot; from OpenSuSE (even possible for CentOS 6)<BR>
<B>chkstat --set --no-fscaps /etc/permissions.secure</B> # configuration from right above<BR>
<B>chkstat --set --no-fscaps /etc/permissions.local</B> # ... but configure it at first!
<BR><BR>
... oh, where does it belong to (this line went out)?:  +capabilities cap_net_bind_service=ep
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>CAPABILITIES</B><BR>
capsh, getcap, setcap, ... <BR>
linux - Using capsh to drop all capabilities - Stack Overflow<BR>
root: All caps are assigned to root by default !<BR>
pub enum Capability { CAP_CHOWN, CAP_DAC_OVERRIDE, CAP_DAC_READ_SEARCH, CAP_FOWNER, CAP_FSETID, CAP_KILL, CAP_SETGID, CAP_SETUID, CAP_SETPCAP Drops the capability for the current process via a call to cap_drop_bound.0x0000003fffffffff=cap_chown,cap_dac_override,cap_dac_read_search,cap_fowner,cap_fsetid,cap_kill,cap_setgid,cap_setuid,cap_setpcap,cap_linux_immutable,cap_net_bind_service,cap_net_broadcast,cap_net_admin,cap_net_raw,cap_ipc_lock,cap_ipc_owner,cap_sys_module,cap_sys_rawio,cap_sys_chroot,cap_sys_ptrace,cap_sys_pacct,cap_sys_admin,cap_sys_boot,cap_sys_nice,cap_sys_resource,cap_sys_time,cap_sys_tty_config,cap_mknod,cap_lease,cap_audit_write,cap_audit_control,cap_setfcap,cap_mac_override,cap_mac_admin,cap_syslog,cap_wake_alarm,cap_block_suspend,37...<BR>
Capabilities: <BR>
capsh --print Current: = Bounding set = Securebits: 00/0x0/1'b0 secure-noroot: no (unlocked) secure-no-suid-fixup: no (unlocked) secure-keep-caps: no (unlocked) uid=10101(u0_a101) gid=10101...<BR>
/etc/permissions.secure :<BR>
...<BR>
/usr/sbin/pinger                                        squid:root        0750<BR>
+capabilities cap_net_raw=ep<BR>
...<BR>
/usr/bin/ping                                           root:root         0755<BR>
+capabilities cap_net_raw=ep<BR>
...<BR>
stackoverflow.com/questions/28811823/using-capsh-to-drop-all-capabilities
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>/etc/rc.local</B> (complete, vollst&auml;ndig)<BR>
<font style="font-size: 9pt" color="green">#!/bin/sh<BR>
#<BR>
### BEGIN INIT INFO<BR>
# Provides: rc.local<BR>
# X-Mandriva-Compat-Mode<BR>
# Default-Start: 2 3 4 5<BR>
# Short-Description: Local initialization script<BR>
# Description: This script will be executed *after* all the other init scripts.<BR>
#              You can put your own initialization stuff in here if you don&#180;t<BR>
#              want to do the full Sys V style init stuff.<BR>
### END INIT INFO<BR>
sysctl -p /etc/sysctl.conf<BR>
auditctl -e0<BR>
echo 1 &gt; /sys/devices/system/cpu/microcode/reload<BR>
# microcode_ctl -Qu<BR>
sh /usr/libexec/microcode_ctl/reload_microcode<BR>
hdparm -W1a0A0 /dev/sda # <i>mausklick-schnelle</i> SSD am S-ATA-Port, beachte die Anschlussnummer (1: sda, 2: sdb, ...)<BR>
echo deadline &gt; /sys/block/sdb/queue/scheduler<BR>
echo 500 &gt; /proc/sys/vm/dirty_writeback_centisecs<BR>
echo 20 &gt; /proc/sys/vm/dirty_ratio<BR>
echo 5 &gt; /proc/sys/vm/dirty_background_ratio<BR>
echo 1 &gt; /proc/sys/net/ipv6/conf/all/disable_ipv6 <BR>
echo 1 &gt; /proc/sys/net/ipv4/tcp_syncookies<BR>
echo &quot;&quot; &gt; /etc/securetty<BR>
# https://en.wikipedia.org/wiki/TCP_congestion-avoidance_algorithm
# cat /proc/sys/net/ipv4/tcp_congestion_control<BR>
# modprobe tcp_htcp<BR>
modprobe sch_fq_codel<BR>
modprobe tcp_cubic<BR>
# modprobe tcp_bbr<BR>
# echo sch_fq_codel &gt; /proc/sys/net/core/default_qdisc<BR>
echo cubic &gt; /proc/sys/net/ipv4/tcp_congestion_control <BR>
macchanger --mac=ac:22:ca:00:00:c1 eth0<BR>
echo sch_fq_codel &gt; /proc/sys/net/core/default_qdisc<BR>
xhost - <BR>
xhost +si:localuser:user<BR>
xhost -inet6:user&#64;<BR>
xhost -nis:user&#64;<BR>
xhost - 192.168.178.1 <BR>
xhost - 192.168.178.40<BR>
# echo 1 &gt; /proc/sys/net/ipv4/conf/all/hidden # or net.ipv4.conf.all.hidden=1 within /etc/sysctl.conf<BR>
# echo 1 &gt; /proc/sys/net/ipv4/conf/eth0/hidden<BR>
# echo 1 &gt; /proc/sys/net/ipv4/conf/all/secure_redirects<BR>
# echo 0 &gt; /proc/sys/net/ipv4/conf/all/shared_media<BR>
# echo 1 &gt; /proc/sys/net/ipv4/conf/eth0/secure_redirects<BR>
# echo 0 &gt; /proc/sys/net/ipv4/conf/eth0/shared_media<BR>
touch /var/lock/subsys/local<BR>
modprobe usblp<BR>
modprobe usb_storage<BR>
ifconfig eth0 -multicast<BR>
ifconfig lo -multicast<BR>
ifconfig lo -broadcast<BR>
ip link set eth0 multicast off<BR>
ip link set lo multicast off<BR>
sh /etc/init.d/ip6tables restart # wenn iptables-ipv6 (el6) neben iptables (el6) installiert worden ist; Der gesamte Traffic innerhalb des neuen Adressraums IPv6 wird auf INPUT, OUTPUT und FORWARD mit Linfw3 geblockt, siehe Regeln innerhalb /etc/sysconfig/ip6tables. Anstelle dieses totalen Blocks k&ouml;nnen alle IPv4-Regeln von Linfw3 in /usr/local/LINFW3.sh nach /etc/sysconfig/ip6tables &uuml;bernommen werden, indem   ipt=&quot;iptables&quot; mit ipt=&quot;ip6tables&quot; ausgestauscht wird. &Uuml;berpr&uuml;fe au&szlig;erdem, ob /sbin/ip6tables* richtig mit /sbin/ip6tables-multi verlinkt ist.<BR>
mount -t securityfs -o rw,noatime /sys/kernel/security /mnt2<BR>
#sh /etc/init.d/syslog start<BR>
sh /etc/init.d/rsyslog start<BR>
cp -fp /etc/hosts.savenew /etc/hosts<BR>
cp -fp /etc/pdnsd-savenew.conf /etc/pdnsd.conf  <BR>
# cp -fp /boot-save/ifcfg-eth0* /etc/sysconfig/network-scripts/<BR>
cp -fp /boot-save/70-persistent-net.rules /etc/udev/rules.d/<BR>
export RESOLV_HOST_CONF=&quot;/etc/hosts&quot;<BR>
# sh /etc/init.d/incrond start<BR>
# sh /etc/init.d/noflushd start<BR>
# gpg-agent --daemon --use-standard-socket<BR>
# atieventsd <BR>
# dhclient -4 -cf /etc/dhcp/dhclient.conf eth0 &amp;<BR>
# NetworkManager --log-level=ERR<BR>
# preload<BR>
# ifup eth0<BR>
# acpid&amp;<BR>
# dnssec-triggerd<BR>
# unbound -dv -c /etc/unbound/unbound.conf<BR>
# tcpd &<BR>
# sh /etc/init.d/xfs start<BR>
# sh /etc/init.d/psad start<BR>
# paxctld -c /etc/paxctld.conf -d -p /var/run/paxctld<BR>
# dnscrypt-proxy --daemonize --user=pdnsd --local-address 127.0.0.2:53 -r 192.168.178.1 -l --tcp-port 443 /dev/null<BR>
# dnscrypt-proxy --daemonize --user=pdnsd --local-address 127.0.0.2:53 -r 208.67.222.222 --tcp-port 443 -l /dev/null<BR>
# dnscrypt-proxy --daemonize --user=pdnsd --local-address 127.0.0.2:53 -r 213.73.91.35 --tcp-port 443 -l /dev/null <BR>
# cp -fp /var/cache/pdnsd.cache /var/cache/pdnsd-savenew.cache<BR>
# speechd<BR>
# artsd&amp;<BR>
# killall plymouthdxhost -<BR>
# sh /etc/init.d/lpd start<BR>
# redshift -l 60:10 -t 6500K:6200K&amp;<BR>
sh /etc/init.d/modules-disabled start# kernel.modules_disabled=1, here after 45 seconds<BR>
chkstat --set --no-fscaps /etc/permissions # rpm permissions form OpenSuSE<BR>
chkstat --set --no-fscaps /etc/permissions.secure<BR>
#apparmor_parser -af /etc/apparmor/profiles/extras/usr.lib.firefox.firefox &amp;<BR>
#apparmor_parser -af /etc/apparmor/profiles/sbin.dhclient &amp;<BR>
#apparmor_parser -af /etc/apparmor/profiles/usr.bin.man &amp;<BR>
#apparmor_parser -af /etc/apparmor/profiles/usr.bin/passwd &amp;<BR>
#apparmor_parser -af /etc/apparmor/profiles/extras/usr.lib.firefox.sh &amp;<BR>
# /usr/lib64/apparmorapplet&amp;<BR>
unshare apparmor-dbus &amp; <BR>
echo &quot;ALLOW_REBOOT=yes&quot; &gt;&gt; /etc/security/msec/security.conf<BR>
echo &quot;BASE_LEVEL=secure&quot; &gt; /etc/security/msec/security.conf<BR>
echo &quot;ENABLE_STARTUP_MSEC=yes&quot; &gt; /etc/security/msec/security.conf<BR>
echo &quot;ENABLE_STARTUP_PERMS=enforce&quot; &gt; /etc/security/msec/security.conf<BR>
msec -f secure # msec: rpm from Mandriva Linux and Rosalabs<BR>
# chmod 666 /dev/usb/lp0 # besser: S&auml;mtliche chown und chmod in /etc/permissions.secure in der vorgesehenen Form eintragen!<BR>
chown pdnsd:pdnsd -R /var/cache/pdnsd<BR>
chmod 755 /var/cache/pdnsd/pdnsd.cache<BR>
chown root:root /etc/hosts<BR>
chmod 400 /usr/local/key<BR>
chmod 644 /etc/hosts<BR>
chmod 111 /<BR>
chmod 751 /etc<BR>
chmod 755 /etc/sysconfig/network<BR>
chmod 755 /etc/sysconfig/network-scripts<BR>
chmod 400 /etc/shadow*<BR>
chmod 400 /etc/fstab*<BR>
chmod 700 /etc/crypttab*<BR>
chmod 700 /etc/mtab*<BR>
chmod 711 /home<BR>
chmod 700 /home/user<BR>
chmod 700 /home/surfuser<BR>
chmod 700 -R /home/surfuser/.mozilla<BR>
chown root:root /home/surfuser/.mozilla/firefox/profile.default/user.js<BR>
chmod 755 /home/surfuser/.mozilla/firefox/profile.default/user.js<BR>
chown root:root /home/surfuser/.mozilla/firefox/prefs.js<BR>
chmod 755 /home/surfuser/.mozilla/firefox/prefs.js<BR>
chmod 700 -R /home/surfuser/.moon*<BR>
chmod 700 -R /usr/src   <BR>
chmod 751 /etc/X11<BR>
chmod 751 /usr/lib64<BR>
chmod 751 /usr/lib64/kde4<BR>
chmod 700 /home/toruser<BR>
chmod 700 -R /home/user/Dokumente<BR>
chmod 700 /home/uuidd<BR>
chmod 400 /usr/local/ke*<BR>
chmod 755 /usr<BR>
chmod 751 /bin<BR>
chmod 751 /sbin<BR>
chmod 751 /lib64<BR>
chmod 751 /opt<BR>
chmod 751 /lib<BR>
chmod 700 /root<BR>
chmod 700 -R /etc/init.d<BR>
chmod 751 /initrd<BR>
chmod 751 /misc<BR>
chmod 700 -R /boot-save<BR>
chmod 644 /etc/passwd<BR>
chmod 751 /usr/games<BR>
chmod 751 /net<BR>
chmod 710 /secoff<BR>
chmod 700 /sid-root<BR>
chmod 700 /smack<BR>
chmod 751 /srv<BR>
chmod 751 /sys<BR>
chmod 700 /typo3i*<BR>
chmod 751 /var<BR>
chmod 700 /lost*found<BR>
chmod 710 /intel-ucode*<BR>
chmod 751 /initrd<BR>
chmod 710 /GenuineIntel.bin<BR>
chmod 751 /etc/security/msec/*.secure<BR>
chmod 751 /Module.symvers<BR>
rm -df /home/surfuser/.Xauth*.*<BR>
rm -df /home/surfuser/.xauth*<BR>
rm -df /home/toruser/.xauth*<BR>
rm -df /home/toruser/.Xauth*.*<BR>
rm -df /home/user/.kde4/share/apps/kmail/mail/Spam/cur/*<BR>
rm -df /var/spool/cups/a*<BR>
rm -df /var/spool/cups/b*<BR>
rm -df /var/spool/cups/c*<BR>
rm -df /var/spool/cups/d*<BR>
rm -df /var/spool/cups/e*<BR>
rm -df /var/spool/cups/f*<BR>
rm -df /var/spool/cups/g*<BR>
rm -df /var/spool/cups/h*<BR>
rm -df /var/spool/cups/i*<BR>
rm -df /var/spool/cups/j*<BR>
rm -df /var/spool/cups/k*<BR>
rm -df /var/spool/cups/l*<BR>
rm -df /var/spool/cups/m*<BR>
rm -df /var/spool/cups/o*<BR>
rm -df /var/spool/cups/p*<BR>
rm -df /var/spool/cups/q*<BR>
rm -df /var/spool/cups/r*<BR>
rm -df /var/spool/cups/s*<BR>
rm -df /var/spool/cups/u*<BR>
rm -df /var/spool/cups/v*<BR>
rm -df /var/spool/cups/w*<BR>
rm -df /var/spool/cups/x*<BR>
rm -df /var/spool/cups/y*<BR>
rm -df /var/spool/cups/z*<BR>
echo &#180;V&#180; &gt; /dev/watchdog<BR>
sh /etc/init.d/dosetfacls start# Script dosetfacls right up in the following<BR>
exit</font>
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Also create file (runlevel-init-script)<BR>
/etc/init.d/dosetfacls</B>
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Erzeuge noch <BR>
/etc/init.d/dosetfacls</B>
<BR><BR>
<font color="green" style="font-size: 9pt">#!/bin/sh<BR>
#<BR>
# This is file /etc/rc.d/init.d/linfw3 and was put here <BR>
# by the linfw3 rpm<BR>
#<BR>
# chkconfig: 2345 92 36<BR>
#<BR>
# description: secure iptables based firewall against all hacker and trojans \<BR>
# evtl. change chkconfig Number!<BR>
#<BR>
<BR>
#  ********************************************************************<BR>
# <BR>
#  File        :  &#36;Source: /cvsroot/ijbswa/current/linfw3.init,v &#36;<BR>
# <BR>
#  Purpose     :  This shell script takes care of starting and stopping<BR>
#                 linfw3.<BR>
# <BR>
#  Copyright   :  Written by Gooken<BR>
#                 http://www.gooken.de<BR>
# <BR>
# <BR>
# <BR>
# ********************************************************************/<BR>
<BR>
<BR>
# Source function library.<BR>
. /etc/rc.d/init.d/functions<BR>
<BR>
start () {<BR>
        # start daemon<BR>
setfacl -m u:-1:- /* # There is an unnamed (!) process starting from time to time by user so called &quot;-1, root&quot;.... listed on the buttom of the listing from ps -aux (gamin, FAM?) <BR>
setfacl -m u:-1:- /mnt<BR>
setfacl -m u:-1:- /media<BR>
setfacl -m u:apache:- /home/user<BR>
setfacl -m u:apache:- /home/surfuser<BR>
setfacl -m u:apache:- /home/toranonym<BR>
setfacl -m u:apache:- /mnt<BR>
setfacl -m u:apache:- /media<BR>
setfacl -m u:surfuser:- /etc/shadow*<BR>
setfacl -m u:toranonym:- /etc/shadow*<BR>
setfacl -m u:surfuser:- /etc/fstab*<BR>
setfacl -m u:surfuser:- /etc/mtab*<BR>
setfacl -m u:surfuser:- /etc/crypttab*<BR>
setfacl -m u:toranonym:- /etc/fstab*<BR>
setfacl -m u:toranonym:- /etc/mtab*<BR>
setfacl -m u:toranonym:- /etc/crypttab*<BR>
setfacl -m u:surfuser:- /etc/init.d<BR>
setfacl -m u:surfuser:- /etc/init.d/*<BR>
setfacl -m u:toranonym:- /etc/init.d<BR>
setfacl -m u:toranonym:- /etc/init.d/*<BR>
setfacl -m u:surfuser:- /etc/rc0.d<BR>
setfacl -m u:surfuser:- /etc/rc1.d<BR>
setfacl -m u:surfuser:- /etc/rc2.d<BR>
setfacl -m u:surfuser:- /etc/rc3.d<BR>
setfacl -m u:surfuser:- /etc/rc4.d<BR>
setfacl -m u:surfuser:- /etc/rc5.d<BR>
setfacl -m u:surfuser:- /etc/rc6.d<BR>
setfacl -m u:surfuser:- /etc/rc.local<BR>
setfacl -m u:toranonym:- /etc/rc0.d<BR>
setfacl -m u:toranonym:- /etc/rc1.d<BR>
setfacl -m u:toranonym:- /etc/rc2.d<BR>
setfacl -m u:toranonym:- /etc/rc3.d<BR>
setfacl -m u:toranonym:- /etc/rc4.d<BR>
setfacl -m u:toranonym:- /etc/rc.local<BR>
setfacl -m u:surfuser:- /etc/security/msec<BR>
setfacl -m u:surfuser:- /etc/security<BR>
setfacl -m u:toranonym:- /etc/security<BR>
setfacl -m u:toranonym:- /etc/security/msec<BR>
setfacl -m u:surfuser:- /etc/crypttab*<BR>
setfacl -m u:surfuser:- /usr/bin/*<BR>
setfacl -x surfuser /usr/bin/bash*<BR>
setfacl -x surfuser /usr/bin/unshare<BR>
setfacl -x surfuser /usr/bin/firejail*<BR>
setfacl -x surfuser /usr/bin/firefox*<BR>
setfacl -x surfuser /usr/bin/gftp*<BR>
setfacl -x surfuser /usr/bin/tor*<BR>
setfacl -x surfuser /usr/bin/xauth*<BR>
setfacl -x surfuser /usr/bin/xargs* <BR>
setfacl -x surfuser /usr/bin/sg*<BR>
setfacl -x surfuser /usr/bin/palemoon*<BR>
setfacl -x surfuser /usr/bin/export<BR>
setfacl -m u:surfuser:- /usr/libexec<BR>
setfacl -m u:surfuser:- /usr/sbin<BR>
setfacl -m u:surfuser:--x /bin<BR>
setfacl -m u:surfuser:- /bin/*<BR>
setfacl -m u:surfuser:- /sbin<BR>
setfacl -x surfuser /bin/bash*   <BR>
setfacl -x surfuser /bin/certtool<BR>
setfacl -x surfuser /bin/certutil<BR>
setfacl -x surfuser /bin/basename<BR>
setfacl -x surfuser /bin/bash.old<BR>
setfacl -x surfuser /bin/p11tool<BR>
setfacl -x surfuser /bin/pk12util<BR>
setfacl -x surfuser /bin/smime<BR>
setfacl -x surfuser /bin/shlibsign<BR>
setfacl -x surfuser /bin/sign*<BR>
setfacl -x surfuser /bin/ssltap*<BR>
setfacl -m u:surfuser:--x /home/surfuser<BR>
setfacl -m u:toranonym:- /home/surfuser<BR>
setfacl -m u:surfuser:- /usr/local<BR>
setfacl -m u:surfuser:- /opt<BR>
setfacl -m u:surfuser:--x /lib64<BR>
setfacl -m u:surfuser:--x /usr/lib64<BR>
setfacl -m u:surfuser:--x /lib<BR>
setfacl -m u:surfuser:--x /usr/lib<BR>
setfacl -m u:surfuser:- /misc<BR>
setfacl -m u:surfuser:- /net<BR>
setfacl -m u:surfuser:- /sid-root<BR>
setfacl -m u:surfuser:--x /etc<BR>
setfacl -m u:surfuser:- /intel-ucode<BR>
setfacl -m u:surfuser:--x /secoff<BR>
setfacl -m u:surfuser:- /smack<BR>
setfacl -m u:surfuser:- /srv<BR>
setfacl -m u:surfuser:- /--tcp-port<BR>
setfacl -m u:surfuser:- /initrd<BR>
setfacl -m u:surfuser:- /ttf<BR>
setfacl -m u:surfuser:- /none<BR>
setfacl -m u:surfuser:- /doc<BR>
setfacl -m u:surfuser:- /firejail<BR>
setfacl -m u:surfuser:- /root<BR>
setfacl -m u:surfuser:- /usr/lib64/kde4/*<BR>
setfacl -x surfuser /usr/lib64/kde4/libexec<BR>
setfacl -m u:surfuser:- /usr/lib64/kde4/libexec/*<BR>
setfacl -x surfuser /usr/lib64/kde4/libexec/kdesu*<BR>
return <BR>
}<BR>
<BR>
case &quot;&#36;1&quot; in
  start)<BR>
        start   <BR>
        ;;<BR>
  *)<BR>
        gprintf &quot;Usage: %s {start|stop|restart|status}
&quot; &quot;&#36;LINFW3_PRG&quot;<BR>
        exit 1<BR>
esac<BR>
<BR>
exit &#36;RETVAL</font>
<BR><BR>
Notice: toranonym is our elder account for tor. Now it&#180;s surfuser too - as general for browsing, but can be used for more privilidges, for many, many processes like for chats or global mapping like marble. surfuser only is enough - just reset belonging setfacl process by process to allow by option -x<BR>
 Exchange &#36; again with the dollar-character... and start it each boot within /etc/rc.local by the command &quot;sh /etc/init.d/dosetfacls start&quot; !<BR>
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Change File Attributes</B> (chattr) for example for data integrity ( option -i )<BR>
man chattr<BR>
User-Extended-Attributes must be set for the belonging partitions!<BR>
Also notice the many configuration files in the home-directory, that might get changed by you or automatically. We would resign from &quot;chattr +i&quot; upon them.
<BR><BR>
<font color="green" style="font-size: 9pt">chattr +i -R /boot<BR>
chattr +i /etc/hosts* # Neben Root-Eigentumsrechten wichtiger Schutz vor Server-Pharming<BR>
chattr +i /etc/fstab<BR>
chattr +i /home/surfuser/.mozilla<BR>
chattr +i /home/surfuser/.mozilla/firefox/*.js<BR>
chattr +i /home/surfuser/.mozilla/firefox/profile.default/user.js<BR>
chattr +i /home/surfuser/torrc<BR>
chattr +i /home/surfuser/geoip*</font>
chattr +i -R /home/user/.*<BR>
chattr +i -R /home/user/*<BR>
chattr -i -R /home/user/.dbus<BR>
chattr -i /home/user/.cache<BR>
chattr -i -R /home/user/.gnupg<BR>
chattr -i -R /home/user/.pulse*<BR>
chattr -i /home/user/.screenrc*<BR>
chattr -i /home/user/.esd_auth*<BR>
chattr -i /home/user/.Xauthority*<BR>
chattr -i /home/user/.Xdefaults*<BR>
chattr -i /home/user/.xsession*<BR>
chattr -i -R /home/user/.gconf*<BR>
chattr -i -R /home/user/.local*<BR>
chattr -i -R /home/user/.mcop*<BR>
chattr -i -R /home/user/.qt*<BR>
chattr -i -R /home/user/.kde*<BR>
chattr -i -R /home/user/.wine*<BR>
chattr -i -R /home/.MANY_GAMES_CONFIGS<BR>
chattr -i -R /home/user/.config*
<BR><BR>
... und create as described further above the belonging two runlevel-init-scripts (daemons) in /etc/init.d namens rc.local and dosetfacl.<BR>
Register those two scripts and active them by default in higher runlevels:
<BR><BR>
 chkconfig --add rc.local &amp;&amp; chkconfig --add dosetfacl
<BR><BR>
Advantage: regardless from packet-installations, significant ACL-access-rights were set each system boot. This keeps the system secure and makes it mouse-click-fast.
<BR><BR>
<B>Additionally, the grsecurity-patches for the kernel (resp. root-kernel-processes), login-lock /sbin/nologin and password-protection and locking of all system- and user-accounts excecpt surfuser (and maybe a separate toruser), Sandbox Firejail (especially for the lock of the shells/terminals) and Firewall Linfw3 get in use too, beneath Tor resp. the tor-browser with firefox-extensions for script-filtering like ABP, noscript and RequestPolicyBlockContinued and more get in use too.</B>
<BR><BR>
Set setfacl -m u:surfuser:- /usr/bin/* except for /usr/bin/bash, /usr/bin/firefox, /usr/bin/firejail, /usr/bin/sg, /usr/bin/proftp*, /usr/bin/tor*, /usr/bin/export, /usr/bin/xauth*, /usr/bin/xarg* and all communication programs, surfuser should be able to use. 
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>rsyslog anstelle syslogd</B><BR>
Rsyslog is an enhanced multi-threaded syslogd supporting, among others, MySQL, PostgreSQL, syslog/tcp, RFC 3195, permitted sender lists, filtering on any message part, and fine grain output format control. It is quite compatible to stock sysklogd and can be used as a drop-in replacement. Its advanced features make it suitable for enterprise-class, encryption protected syslog relay chains while at the same time being very easy to setup for the novice user. o lmnet.so - Implementation of network related stuff. o lmregexp.so - Implementation of regexp related stuff. o lmtcpclt.so - This is the implementation of TCP-based syslog clients. o lmtcpsrv.so - Common code for plain TCP based servers. o imtcp.so - This is the implementation of the TCP input module. o imudp.so - This is the implementation of the UDP input module. o imuxsock.so - This is the implementation of the Unix sockets input module. o imklog.so - The kernel log input module for Linux. o immark.so - This is the implementation of the build-in mark message input module. o imfile.so - This is the input module for reading text file data.
<BR><BR>
You have to delete all *syslog*-init-script-files out of /etc/rc*.d/ and /etc/init.d/ .
<BR><BR>
/etc/rsyslog.conf<BR>
<font style="font-size: 9pt" color="green"># rsyslog v5 configuration file<BR>
# For more information see /usr/share/doc/rsyslog-*/rsyslog_conf.html<BR>
# If you experience problems, see http://www.rsyslog.com/doc/troubleshoot.html<BR>
#### MODULES ####<BR><BR>
DollarsignModLoad imuxsock # provides support for local system logging (e.g. via logger command)<BR>
Dollarsignimklog   # provides kernel logging support (previously done by rklogd)<BR>
#DollarsignModLoad immark  # provides --MARK-- message capability<BR>
# Provides UDP syslog reception<BR>
#&#36;ModLoad imudp<BR>
#&#36;UDPServerRun 514<BR>
# Provides TCP syslog reception<BR>
#&#36;ModLoad imtcp<BR>
#&#36;InputTCPServerRun 514<BR>
#### GLOBAL DIRECTIVES ####<BR>
# Use default timestamp format<BR>
&#36;ActionFileDefaultTemplate RSYSLOG_TraditionalFileFormat<BR>
# File syncing capability is disabled by default. This feature is usually not required,<BR>
# not useful and an extreme performance hit<BR>
#&#36;ActionFileEnableSync on<BR>
# Include all config files in /etc/rsyslog.d/<BR>
&#36;IncludeConfig /etc/rsyslog.d/*.conf<BR>
#### RULES ####<BR>
# Log all kernel messages to the console.<BR>
# Logging much else clutters up the screen.<BR>
#kern.*                                                 /dev/console<BR>
# Log anything (except mail) of level info or higher.<BR>
# Don&#180;t log private authentication messages!<BR>
*.warn;mail.none;news.none;authpriv.none;cron.none                /tmp/messages<BR>
# The authpriv file has restricted access.<BR>
authpriv.*                                              /tmp/secure<BR>
# Log all the mail messages in one place.<BR>
mail.*                                                  -/tmp/maillog<BR>
# Log cron stuff<BR>
cron.*                                                  /tmp/cron<BR>
# Everybody gets emergency messages<BR>
*.emerg                                                 *<BR>
# Save news errors of level crit and higher in a special file.<BR>
uucp,news.crit                                          /tmp/spooler<BR>
# Save boot messages also to boot.log<BR>
local7.*                                                /tmp/boot.log<BR>
# ### begin forwarding rule ###<BR>
# The statement between the begin ... end define a SINGLE forwarding<BR>
# rule. They belong together, do NOT split them. If you create multiple<BR>
# forwarding rules, duplicate the whole block!<BR>
# Remote Logging (we use TCP for reliable delivery)<BR>
#<BR>
# An on-disk queue is created for this action. If the remote host is<BR>
# down, messages are spooled to disk and sent when it is up again.<BR>
#&#36;WorkDirectory /var/lib/rsyslog # where to place spool files<BR>
#&#36;ActionQueueFileName fwdRule1 # unique name prefix for spool files<BR>
#&#36;ActionQueueMaxDiskSpace 1g   # 1gb space limit (use as much as possible)<BR>
#&#36;ActionQueueSaveOnShutdown on # save messages to disk on shutdown<BR>
#&#36;ActionQueueType LinkedList   # run asynchronously<BR>
#&#36;ActionResumeRetryCount -1    # infinite retries if host is down<BR>
# remote host is: name/ip:port, e.g. 192.168.0.1:514, port optional<BR>
#*.* &#64;&#64;remote-host:514<BR>
# ### end of the forwarding rule ###<BR>
#<BR>
# INN<BR>
#<BR>
news.=crit                                        /tmp/news/news.crit<BR>
news.=err                                         /tmp/news/news.err<BR>
news.notice                                       /tmp/news/news.notice<BR>
news.=debug                                       /tmp/news/news.debug</font>
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>/proc/sys/* - Kernel-flags &amp;Co.: detailed configuration</B><BR>
sysctl.conf - variables are files out of /proc/sys<BR>
check settings by &quot;sysctl -a&quot;<BR>
<font color="green" style="font-size: 9pt"># Kernel sysctl configuration file <BR>
# /etc/sysctl.conf<BR>
# sysctl settings are defined through files in<BR>
# /usr/lib/sysctl.d/, /run/sysctl.d/, and /etc/sysctl.d/.<BR>
#<BR>
# Vendors settings live in /usr/lib/sysctl.d/.<BR>
# To override a whole file, create a new file with the same in<BR>
# /etc/sysctl.d/ and put new settings there. To override<BR>
# only specific settings, add a file with a lexically later<BR>
# name in /etc/sysctl.d/ and put new settings there.<BR>
#<BR>
# For more information, see sysctl.conf(5) and sysctl.d(5).<BR>
# Kernel sysctl configuration file for CentOS and Mandriva Linux<BR>
#<BR>
# For binary values, 0 is disabled, 1 is enabled.  See sysctl(8) and<BR>
# sysctl.conf(5) for more details.<BR>
# /etc/sysctl.conf<BR>
#  additionally from http://joshrendek.com/2013/01/securing-ubuntu/ resp. http://www.nsa.gov/ia/_files/os/redhat/rhel5-guide-i731.pdf <BR>
# Turn on execshild<BR>
# kernel.exec-shield = 1<BR>
# Controls the System Request debugging functionality of the kernel<BR>
kernel.sysrq =0<BR>
net.ipv6.conf.lo.use_tempaddr = 0<BR>
# Disables IP dynaddr<BR>
net.ipv4.ip_dynaddr = 1 <BR>
# Disable ECN<BR>
net.ipv4.tcp_ecn = 1<BR>
# Controls source route verification<BR>
net.ipv4.conf.all.rp_filter =1<BR>
net.ipv4.conf.default.rp_filter = 1<BR>
net.ipv4.tcp_congestion_control=cubic<BR>
# Do not accept source routing<BR>
net.ipv4.conf.default.accept_source_route = 0<BR>
<BR>
# Controls the System Request debugging functionality of the kernel<BR>
kernel.sysrq =0<BR>
# kernel.modules_disabled=0<BR>
# kernel.exec-shield=1<BR>
# Controls whether core dumps will append the PID to the core filename.<BR>
# Useful for debugging multi-threaded applications.<BR>
kernel.core_uses_pid = 0<BR>
#   If the kptr_restrict value is 0, kernel addresses are provided without limitations (recommended).<BR>
#   If the kptr_restict value is 1, addresses are provided if the current user has a CAP_SYSLOG <BR>
# capability.<BR>
#  If the kptr_restrict value is 2, the kernel addresses are hidden regardless of privileges the <BR>
# current user has.<BR>
<BR>
kernel.kptr_restrict=2<BR>
kernel.dmesg_restrict = 1<BR>
# kernel.yama.ptrace_scope=3<BR>
# If you set this variable to 1 then cd tray will close automatically when the <BR>
# cd drive is being accessed.<BR>
# Setting this to 1 is not advised when supermount is enabled<BR>
# (as it has been known to cause problems)<BR>
dev.cdrom.autoclose=1<BR>
dev.cdrom.autoeject=1<BR>
# removed to fix some digital extraction problems <BR>
# dev.cdrom.check_media=1<BR>
# to be able to eject via the device eject button (magicdev)<BR>
dev.cdrom.lock=0<BR>
<BR>
# Disable netfilter on bridges.<BR>
#net.bridge.bridge-nf-call-ip6tables = 0<BR>
#net.bridge.bridge-nf-call-iptables = 0<BR>
#net.bridge.bridge-nf-call-arptables = 0<BR>
net.ipv4.ip_forward =0<BR>
# Do not send ICMP redirects (we are not a router)<BR>
net.ipv4.conf.all.send_redirects = 0<BR>
net.ipv4.conf.default.send_redirects = 0<BR>
net.ipv4.tcp_max_syn_backlog =512<BR>
 # Do not accept IP source route packets (we are not a router)<BR>
net.ipv4.conf.all.accept_source_route = 0<BR>
net.ipv4.conf.all.accept_redirects = 0<BR>
net.ipv4.conf.default.accept_redirects = 0<BR>
net.ipv4.conf.all.secure_redirects = 1<BR>
net.ipv4.conf.default.accept_source_route = 0<BR>
net.ipv4.conf.default.accept_redirects = 0<BR>
net.ipv4.conf.default.secure_redirects = 0<BR>
net.ipv4.tcp_syncookies = 1<BR>
net.ipv4.conf.all.log_martians = 1<BR>
net.ipv4.conf.all.shared_media = 0<BR>
net.ipv4.conf.eth0.secure_redirects=1<BR>
net.ipv4.conf.eth0.shared_media=0<BR>
<BR>
​# Increase system IP port limits<BR>
net.ipv4.ip_local_port_range = 2000 65000<BR>
# Increase TCP max buffer size setable using setsockopt()<BR>
net.ipv4.tcp_rmem = 4096 87380 8388608<BR>
net.ipv4.tcp_wmem = 4096 87380 8388608<BR>
net.ipv6.conf.eth0.disable_ipv6=1 <BR>
net.ipv6.conf.all.disable_ipv6 = 1<BR>
net.ipv6.conf.default.router_solicitations=0<BR>
net.ipv4.tcp_syncookies = 1<BR>
net.ipv6.conf.default.accept_ra_rtr_pref=0<BR>
net.ipv6.conf.default.accept_ra_pinfo=0<BR>
net.ipv6.conf.default.accept_ra_defrtr=0<BR>
net.ipv6.conf.default.autoconf=0<BR>
net.ipv6.conf.default.dad_transmits=0<BR>
net.ipv6.conf.default.max_addresses=0<BR>
#<BR>
# ls /lib/modules/&#180;uname -r&#180;/kernel/net/ipv4/<BR>
# modprobe tcp_htcp<BR>
# modprobe tcp_cubic<BR>
# modprobe tcp_bbr<BR>
# net.core.default_qdisc=sch_fq_codel<BR>
net.ipv4.tcp_congestion_control=cubic<BR>
# BBR<BR>
<BR>
# net.core.default_qdisc=fq <BR>
# net.ipv4.tcp_congestion_control=bbr<BR>
<BR>
# Increase Linux auto tuning TCP buffer limits<BR>
# min, default, and max number of bytes to use<BR>
# set max to at least 4MB, or higher if you use very high BDP paths<BR>
net.core.somaxconn=65535<BR>
net.core.optmem_max=25165824<BR>
net.core.rmem_max =212992<BR>
net.core.wmem_max =212992<BR>
net.core.rmem_default =212992<BR>
net.core.wmem_default =212992<BR>
net.core.netdev_max_backlog = 1000<BR>
#       <BR>
kernel.sysrq = 0<BR>
kernel.core_uses_pid = 1<BR>
# Optimization for port usefor LBs<BR>
# Increase system file descriptor limit<BR>
fs.file-max=65535<BR>
fs.protected_hardlinks=1<BR>
fs.protected_symlinks=1<BR>
fs.protected_regular=1<BR>
# fs.protected_fifos=1 # this might cause overflow of processes akonadi_maildir: system runs out of capacities<BR>
# fs.dir-notify-enable=0<BR>
# fs.mount-max=20       <BR>
fs.suid_dumpable=0<BR>
# The kernel allocates aio memory on demand, and this number limits the<BR>
# number of parallel aio requests; the only drawback of a larger limit is<BR>
# that a malicious guest could issue parallel requests to cause the kernel<BR>
# to set aside memory.  Set this number at least as large as<BR>
#   128 * (number of virtual disks on the host)<BR>
# Libvirt uses a default of 1M requests to allow 8k disks, with at most<BR>
# 64M of kernel memory if all disks hit an aio request at the same time.<BR>
# fs.aio-max-nr = 1048576<BR>
# Allow for more PIDs (to reduce rollover problems); may break some programs 32768<BR>
kernel.pid_max=65536<BR>
net.ipv4.tcp_syncookies = 1<BR>
kernel.msgmnb = 65536<BR>
kernel.msgmax = 65536<BR>
kernel.shmmax = 3294967295<BR>
kernel.shmall = 3294967295<BR>
kernel.randomize_va_space = 2<BR>
<BR>
net.ipv4.tcp_fin_timeout =3600<BR>
net.ipv4.tcp_keepalive_time =7200<BR>
net.ipv4.tcp_keepalive_probes =7<BR>
net.ipv4.tcp_syn_retries =6<BR>
net.ipv4.tcp_retries1 =1<BR>
net.ipv4.tcp_retries2 =3<BR>
net.ipv4.tcp_retrans_collapse =1<BR>
net.ipv4.tcp_sack =1<BR>
net.ipv4.ip_default_ttl =64<BR>
net.ipv4.ipfrag_time =30<BR>
net.ipv4.ip_no_pmtu_disc =0<BR>
net.unix.max_dgram_qlen =10<BR>
vm.overcommit_memory =2<BR>
vm.overcommit_ratio=200<BR>
# or: vm.overcommit_kbytes=<BR>
vm.page-cluster =3<BR>
vm.oom_dump_tasks =0<BR>
vm.dirty_ratio=20<BR>
vm.dirty_writeback_centisecs=500<BR>
vm.dirty_background_ratio=5<BR>
<BR>
kernel.ctrl-alt-del =1<BR>
kernel.panic =0<BR>
kernel.acct =4 2 30<BR>
# Uncomment the following to stop low-level messages on console<BR>
#kernel.printk = 3 4 1 3<BR>
kernel.printk =0 6 1 3<BR>
kernel.printk_ratelimit = 5 # period to wait in seconds<BR>
kernel.printk_ratelimit_burst = 60  # max. amount same time<BR>
kernel.shmall =-1 <BR>
#   If the kptr_restrict value is 0, kernel addresses are provided without limitations (recommended).<BR>
#   If the kptr_restict value is 1, addresses are provided if the current user has a CAP_SYSLOG capability.<BR>
#  If the kptr_restrict value is 2, the kernel addresses are hidden regardless of privileges the current user has.<BR>
kernel.kptr_restrict=2<BR>
# ptrace: process tracing<BR>
# kernel.yama.ptrace_scope=3<BR>
dev.raid.speed_limit_min =1000<BR>
dev.raid.speed_limit_max =200000<BR>
net.ipv4.conf.all.rp_filter=1<BR>
net.ipv4.tcp_window_scaling=1<BR>
net.ipv4.tcp_timestamps=0<BR>
net.ipv4.conf.all.log_martians=1<BR>
net.ipv4.icmp_echo_ignore_all=1<BR>
net.ipv4.icmp_echo_ignore_broadcasts=1<BR>
net.ipv4.icmp_ignore_bogus_error_responses=1<BR>
net.ipv4.tcp_congestion_control=cubic<BR>
net.ipv4.conf.all.secure_redirects=1<BR>
net.ipv4.conf.all.shared_media=0<BR>
net.ipv4.conf.eth0.secure_redirects=1<BR>
net.ipv4.conf.eth0.shared_media=0<BR>
<BR>
# The kernel allocates aio memory on demand, and this number limits the<BR>
# number of parallel aio requests; the only drawback of a larger limit is<BR>
# that a malicious guest could issue parallel requests to cause the kernel<BR>
# to set aside memory.  Set this number at least as large as<BR>
#   128 * (number of virtual disks on the host)<BR>
# Libvirt uses a default of 1M requests to allow 8k disks, with at most<BR>
# 64M of kernel memory if all disks hit an aio request at the same time.<BR>
# fs.aio-max-nr = 1048576</font>
<BR><BR>
http://www.linux-admins.net/2010/09/all-you-need-to-know-about-procsys.html<BR>
Example for ulimit, ulimit -a and sysctl -a, https://forum.altlinux.org/index.php?topic=4786.0
<BR><BR>
Link
<BR><BR> 
ln -sf /usr/sbin/sysctl /sbin/sysctl
<BR><BR>
Test sysctl.conf: sysctl -p /etc/sysctl.conf and activate an error-free sysctl by daemon or in /etc/rc.local
<BR><BR>
sysctl -p /etc/sysctl.config
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Disable Unwanted SUID- and SGID-Binaries</B><BR>
All SUID/SGID bits enabled file can be misused when the SUID/SGID executable has a security problem or bug. All local or remote user can use such file. It is a good idea to find all such files. Use the find command as follows:<BR>
#See all set user id files:<BR>
find / -perm +4000<BR>
# See all group id files<BR>
find / -perm +2000<BR>
# Or combine both in a single command<BR>
find / ( -perm -4000 -o -perm -2000 ) -print<BR>
find / -path -prune -o -type f -perm +6000 -ls
<BR><BR>
You need to investigate each reported file. See reported file man page for further details.<BR>
https://www.cyberciti.biz/tips/linux-security.html
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>How to Remove (Delete) Symbolic Links in Linux</B>, linuxize.com, 09.05.2019<BR>
A symbolic link, also known as a symlink, is a special type of file that points to another file or directory. It is something like a shortcut in Windows. A symlink can point to a file or a directory on the same or a different filesystem or partition.<BR>
In this guide, we will show you how to remove (delete) symbolic links in Linux/UNIX systems using the rm, unlink, and find commands.<BR>
...<BR>
find /path/to/directory -maxdepth 1 -xtype l<BR>
https://linuxize.com/post/how-to-remove-symbolic-links-in-linux/
<BR><BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><font color="red" style="font-size: 12pt"><B>Safe-Linking: Making Linux exploitation harder</B></font>, itweb.co.za, 05.22.2020<BR>
Businesses and users alike are constantly on the lookout for easier ways to do things, and shortcuts that help us work faster and with less effort. Unfortunately, bad actors are no different, and are always hunting for existing vulnerabilities or weaknesses, that can be exploited.<BR>
[...] A good example of this would be memory corruption attacks, which are often employed to exploit programs written in Linux, the most widely-used open source operating system in the world.<BR>
With this in mind, Check Point has created Safe-Linking, a security mechanism to protect the internal structure of the heap - or the portion of memory that is not set to a constant size before compilation and can be controlled dynamically by a programmer - from being tampered with. <BR>
[...] Simply put, Safe-Linking removes the address data for the program, so the bad actor can no longer be sure where in the system&#180;s memory it will be loaded - making it much harder for them to launch an exploit against the program,” the company adds.<BR>
https://www.itweb.co.za/content/Kjlyrvw1ejVMk6am<BR>
https://reportcybercrime.com/safe-linking-making-linux-exploitation-harder/
<BR><BR>
<font color="red" style="font-size: 12pt"><B>Check Point schlie&szlig;t 20 Jahre alte Sicherheitsl&uuml;cke in Linux</B></font>, trojaner-info.de, 26.05.2020<BR>
Das Check Point Research Team f&uuml;hrt eine neue Schutzma&szlig;nahme f&uuml;r das Betriebssystem ein, die sich Safe-Linking nennt. Uralte Schwachstelle endlich geschlossen.<BR>
Das Check Point Research Team f&uuml;hrt eine neue Sicherheitsmethode ein, um Linux-Systeme um einiges sicherer zu machen. Den Sicherheitsforschern gelang es, eine 20 Jahre alte und bestens bekannte Sicherheitsl&uuml;cke endlich zu schlie&szlig;en.<BR>
https://www.trojaner-info.de/sicher-anonym-im-internet/aktuelles/check-point-schliesst-20-jahre-alte-sicherheitsluecke-in-linux.html
<BR><BR>
[...] In our latest research, we created a security mechanism, called &quot;Safe-Linking&quot;, to protect malloc()&#180;s single-linked lists from tampering by an attacker. We successfully pitched our approach to maintainers of core open-source libraries, and it is now integrated into the most common standard library implementation: glibc (Linux) and its popular embedded counterpart: uClibc-NG.<BR>
https://www.terabitweb.com/2020/05/21/safe-linking-eliminating-a-20-year-old-malloc-exploit-primitive/
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><font color="red" style="font-size: 12pt"><B>User auditing - The Big Brother is watching you</B></font><BR>
If you are really paranoid you might want to add a system-wide configuration to audit, what the users are doing in your system. This sections presents some tips using diverse utilities you can use.
<BR><BR>
- Input and output audit with script, 4.11.10.1<BR>
- Using the shell history file, 4.11.10.2<BR>
- Complete user audit with accounting utilities, 4.11.10.3<BR>
- Other user auditing methods, 4.11.10.4<BR>
- Reviewing user profiles, 4.11.11<BR>
- Limiting what users can see/access, 4.11.13<BR>
- Limiting access to other user&#180;s information, 4.11.13.1<BR>
- Generating user passwords, 4.11.14<BR>
- Checking user passwords
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><font color="red"><B>kauditd and auditd: Linux Audit Kernel Subsystem and Linux Audit System<BR>
Who does audit the code?</B></font><BR>
kauditd: internal kernel-auditing, for example of windows-titles out of Firefox online.<BR>
<BR><BR>
Kernel-interner audit-Daemon kauditd: URL, Webseiten-Inhalte: Fentstertitel, ... (online mit Browsern wie Firefox)<BR>
<BR><BR>
&quot;00:00:12 <B>[kauditd]</B> dbadmin 4182 1 4182 0 1 May18 00:02:19 /opt/vertica/spread/sbin/spread -c /home/dbadmin/DatabaseName/v_DatabaseName_node0001_catalog/spread.conf...&quot;<BR>
https://forum.vertica.com/discussion/236239/vertica-service-not-starting-after-server-reboot
<BR><BR>
kauditd is a kernel process, which is a part of the Linux kernel responsible for the kernel audit events (and communicates with the auditd process). The special brackets surrounding it are telling you that this is not a regular (userland) process (launched through a command), but a kernel process (started/managed by the Linux kernel itself)<BR>
https://wiki.gentoo.org/wiki/SELinux/Tutorials/The_security_context_of_a_process<BR>
The auditd is provided for system auditing. It is responsible for writing audit records to the disk. During startup, the rules in /etc/audit.rules are read by this daemon. You can open /etc/audit.rules file and make changes such as setup audit file log location and other option. With auditd you can answers the following questions:
<BR><BR>
System startup and shutdown events (reboot / halt).<BR>
Date and time of the event.<BR>
User respoisble for the event (suh as trying to access /path/to/topsecret.dat file).<BR>
Type of event (edit, access, delete, write, update file &amp;commands).<BR>
Success or failure of the event.<BR>
Records events that modify date and time.<BR>
Find out who made changes to modify the system&#180;s network settings.<BR>
Record events that modify user/group information.<BR>
 See who made changes to a file etc.
<BR><BR>
See our quick tutorial which explains enabling and using the auditd service.<BR>
https://www.cyberciti.biz/tips/linux-security.html
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><font color="red"><B>kauditd und auditd: Kernel- und Linux Audit System<BR>
Who does audit the audit code?</B></font>
<BR><BR>
How to use Auditing System in Linux - Configure, Audit Logs and ...<BR>
Well, the Linux Auditing system is the answer for all the above questions. <font color="red"><B>The Linux Auditing system allows an administrator to configure audit rules to monitor the system calls, network access, files etc…and generate a summary report - which can be later analyzed and investigated for suspicious activity.</B></font><BR>
https://techglimpse.com/how-to-use-auditing-system-in-linux-configure-audit-logs-and-generate-reports/
<BR><BR>
See our quick tutorial which explains enabling and using the auditd service.<BR>
https://www.cyberciti.biz/tips/linux-security.html
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Router: Howto detect instrusive attempts within the Fritzbox-menu</B>, PC-WELT.de, 04.19.2021<BR>
https://www.pcwelt.de/tipps/Einbruchsversuche-in-Fritzbox-Menue-aufdecken-11007603.html
<BR><BR>
The Linux audit subsystem is not one of the best-loved parts of the kernel. It allows the creation of a log stream documenting specific system events — system calls, modifications to specific files, actions by processes with certain user IDs, etc. For some, it is an ideal way to get a handle on what is being done on the system and, in particular, to satisfy various requirements for security certifications (Common Criteria, for example). For others, it is an ugly and invasive addition to the kernel that adds maintenance and runtime overhead without adding useful functionality. More recently, though, it seems that audit adds some security holes of its own. But the real problem, perhaps, is that almost nobody actually looks at this code, so bugs can lurk for a long time.<BR>
The system call auditing mechanism creates audit log entries in response to system calls; the system administrator can load rules specifying which system calls are to be logged. These rules can include various tests on system call parameters, but there is also a simple bitmask, indexed by system call number, specifying which calls might be of interest. One of the first things done by the audit code is to check the appropriate bit for the current system call to see if it is set; if it is not, there is no auditing work to be done. <BR>
[...] In summary, the code is a giant mess. The way it works is nearly incomprehensible. It contains at least one severe bug. I&#180;d love to see it fixed, but for now, distributions seem to think that enabling CONFIG_AUDITSYSCALL is a reasonable thing to do, and I&#180;d argue that it&#180;s actually a terrible choice for anyone who doesn&#180;t actually need syscall audit rules. And I don&#180;t know who needs these things. <BR><BR>
 It is telling, though, that this particular vulnerability has existed in the audit subsystem almost since its inception. The audit code receives little in the way of review; most kernel developers simply turn it off for their own kernels and look the other way. But this subsystem is just the sort of thing that distributors are almost required to enable in their kernels; some users will want it, so they have to turn it on for everybody. As a result, almost all systems out there have audit enabled (look for a running kauditd thread), even though few of them are using it. These systems take a performance penalty just for having audit enabled, and they are vulnerable to any issues that may be found in the audit code.<BR>
If audit were to be implemented today, the developer involved would have to give some serious thought, at least, to using the tracing mechanism. It already has hooks applied in all of the right places, but those hooks have (almost) zero overhead when they are not enabled. Tracing has its own filtering mechanism built in; the addition of BPF-based filters will make that feature more capable and faster as well. In a sense, the audit subsystem contains yet another kernel-based virtual machine that makes decisions about which events to log; using the tracing infrastructure would allow the removal of that code and a consolidation to a single virtual machine that is more widely maintained and reviewed.<BR>
The audit system we have, though, predates the tracing subsystem, so it could not have been based on tracing. Replacing it without breaking users would not be a trivial job, even in the absence of snags that have been glossed over in the above paragraph (and such snags certainly exist). So we are likely stuck with the current audit subsystem (which will certainly not be marked "broken" in the mainline kernel) for the foreseeable future. Hopefully it will receive some auditing of its own just in case there are more old surprises lurking therein.<BR>
Posted May 30, 2014 6:50 UTC (Fri) by bnorris (subscriber, #92090) [Link]<BR>
&g; As a result, almost all systems out there have audit enabled
<BR><BR>
&#36; grep CONFIG_AUDIT /boot/config-&#180;uname -r&#180;<BR>
CONFIG_AUDIT_ARCH=y<BR>
CONFIG_AUDIT=y<BR>
CONFIG_AUDITSYSCALL=y<BR>
CONFIG_AUDIT_WATCH=y<BR>
CONFIG_AUDIT_TREE=y
<BR><BR>
( You might want to comment them in ... )
<BR><BR>
&gt; (look for a running kauditd thread)<BR>
None here.<BR>
&g; even though few of them are using it. These systems take a performance penalty just for having audit enabled, and they are vulnerable to any issues that may be found in the audit code.<BR>
I&#180;m not an expert on the kaudit subsystem (in fact, I just learned of it), but it looks like kauditd is only spawned in response to a user-space request for it (e.g. from SELinux auditd). See kernel/audit.c:...<BR>
https://lwn.net/Articles/600568/
man auditd<BR>
man auditd.conf
<BR><BR>
Disable auditd temporarily (this will disable logging instantly but will not survive a reboot):<BR>
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">auditctl -e0 # for example within /etc/rc.local
<BR><BR>
Disable auditd permanently (this will require a reboot):
<BR><BR>
systemctl disable auditd
<BR><BR>
http://kb.ictbanking.net/article.php?id=632
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">kauditd - CentOS | Forum<BR>
kauditd. General support questions including new installations. How to disable kauditd? I tried to put audit=0 to the kernel line in grub, but no luck....<BR>
www.centos.org/forums/viewtopic.php?t=10899
<BR><BR>
kauditd might care for connection even with SELinux from NSA. So why did he had no luck with it? Boot-parameter &quot;audit=0&quot; (for grub: within /boot/grub/menu.lst) does prevent from kernel audit named kauditd ever starting: no auditing like firefox by the kernel anymore! 
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><font color="green"><B>Disable the OOM Killer (process oom_reaper)</B></font>, The Ubuntu Forum Community, Ubuntu Specialised Support, January 2nd, 2014<BR>
As the title suggests, regardless of the repercussions, how do you disable this &quot;feature&quot;.<BR>
Please do not provide alternate suggestions such as &quot;get more ram&quot; or &quot;tell the program to use less memory&quot;.<BR>
I&#180;m running a Minecraft server that has its heap space and permgen configured to use nearly all of the available memory on the vps where it resides. I have a highly specific reason for doing this and no, it has never caused me any problems in the past.
<BR><BR>
Yes the OOM Killer is killing the process see: OOM killed process 659 (java) vm:4973220kB, rss:2066504kB, swap:0kB<BR>
Who ever thought killing processes that are consuming beyond a specific amount of memory was a good idea, you have caused me and, the users of my server immeasurable levels of frustration. I am no Linux guru, so any help would be appreciated so long as that help reads &quot;To disable the oom-killer do X&quot;.<BR>
Thank you in advance. 
<BR><BR>
Re: Disable the OOM Killer
http://thetechnick.blogspot.com/2010...-on-linux.html
http://www.oracle.com/technetwork/ar...r-1911807.html
The OOM killer can be completely disabled with the following command. This is not recommended for production environments, because if an out-of-memory condition does present itself, there could be unexpected behavior depending on the available system resources and configuration. This unexpected behavior could be anything from a kernel panic to a hang depending on the resources available to the kernel at the time of the OOM condition.
<BR><BR>
sysctl vm.overcommit_memory=2 # mouseclick-fast
echo &quot;vm.overcommit_memory=2&quot; &gt;&gt; /etc/sysctl.conf
<BR><BR>
[...] Re: Disable the OOM Killer<BR>
Hi, Psionic,<BR>
I was having the same difficulties. You report that the oom-killer is still killing your process, I suggest either properly fully disabling the oom-killer or lowering the overcommit ratio, as follows:
<BR><BR>
Disabling OOM Killer<BR>
According to: https://www.kernel.org/doc/Documenta...ups/memory.txt<BR>
Code:
<BR><BR>
 You can disable the OOM-killer by writing &quot;1&quot; to memory.oom_control file, as:
<BR><BR>
# echo 1 &gt; memory.oom_control # (unknown variable by sysctl, remark, Gooken)
<BR><BR>
Reducing Overcommit Ratio<BR>
According to https://www.kernel.org/doc/Documenta...mit-accounting<BR>
Code:
<BR><BR>
2    -    Don&#180;t overcommit. The total address space commit for the system is not permitted to exceed swap + a configurable amount (default is 50%) of physical RAM.<BR>
Depending on the amount you use, in most situations this means a process will not be killed while accessing pages but will receive errors on memory allocation as appropriate.<BR>
Useful for applications that want to guarantee their memory allocations will be available in the future without having to initialize every page.<BR>
The overcommit policy is set via the sysctl &#180;vm.overcommit_memory&#180;.<BR>
The overcommit amount can be set via &#180;vm.overcommit_ratio&#180; (percentage) or &#180;vm.overcommit_kbytes&#180; (absolute value).<BR>
There&#180;s a rather good article on this topic http://www.linuxdevcenter.com/pub/a/...ry.html?page=1<BR>
Of course, in general if you&#180;re getting processes killed it means there&#180;s a problem with using more memory than the system can cope with, and the symptoms are very likely to come out somewhere else. In my case the oom-killer was definitely picking the right process, even though it was the primary purpose of the whole computer: the program had a data-dependent bug and was allocating memory out of control.<BR>
I hope that helps.<BR>
Kind regards,<BR>
... <BR>
https://serverfault.com/questions/606185/how-does-vm-overcommit-memory-work
<BR><BR>
More about oom_reaper<BR>
ttps://stackoverflow.com/questions/35791416/how-to-disable-the-oom-killer-in-linux<BR>
https://lwn.net/Articles/666024/<BR>
https://lwn.net/Articles/668126/<BR>
https://code.woboq.org/linux/linux/mm/oom_kill.c.html<BR>
https://www.oracle.com/technical-resources/articles/it-infrastructure/dev-oom-killer.html<BR>
https://superuser.com/q/1150215<BR>
https://ubuntuforums.org/showthread.php?t=2197016<BR>
https://askubuntu.com/q/1188024<BR>
https://unix.stackexchange.com/q/432171<BR>
https://blog.csdn.net/s_lisheng/article/details/82192613
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>rtkit-daemon (rpm rtkit)</B><BR>
Description: &quot;RealtimeKit is a D-Bus system service that changes the scheduling policy of user processes/threads to SCHED_RR (i.e. realtime scheduling mode) on request. It is intended to be used as a secure mechanism to allow real-time scheduling to be used by normal user processes.&quot;.<BR>
https://fr2.rpmfind.net/<BR>
&quot;I&#180;s...a management daemon so to say. Instead of applications asking the kernel directly (and needing proper permissions for this, usually root) they ask the daemon. The daemon can hand out the realtime permissions then according it its configuration (/etc/dbus-1/system.d/org.freedesktop.RealtimeKit1.conf). It&#180;s simply a helper process that allows applications to ask for realtime permissions through dbus...not really much more. But having such a helper process makes the whole procedure much more secure (no suid root needed for some programs), cleaner (dbus interface) and more flexible (one daemon to configure, not each program with an own configuration..if at all).&quot;
<BR><BR>
For rtkit isn&#180t almost needed, as we got told in the internet above, and there are no real dependencies from it, it&#180; might not be a bad idea to deinstall it:
<BR><BR>
&quot;rpm -e --nodeps rtkit&quot;
<BR><BR>
... same eventually with Packagekit (el6), gvfsd (gvfs (el6) and so on: just deinstall them! The less (not really needed daemons do run under root, the more secure the system might behave...
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>netns, migration/0, kintgerityd, oom_reaper, ... ( one of them lists the actual website-title!)</B><BR>
Kernel-daemons almost can&#180;t get deactivated manually! This might be possible by removing some (not needed) kernel-modules by rmmod, delmod or kernel-configuration only (within file .config).
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>netns</B><BR>
Running strongSwan in Network Namespaces (netns) on Linux<BR>
Normally, the network stack (interfaces, routing tables, firewall rules etc.) is shared by all processes running on an operating system. With Linux network namespaces (netns) it&#180;s possible to have multiple separate instances of the network stack.<BR>
Note: While basic support for network namespaces was added to the Linux kernel a long time ago, some features (e.g. CLUSTERIP support) might require a recent kernel.<BR>
The easiest way to work with network namespaces is to use the ip command of the iproute2 package. These commands will have to be executed as root (i.e. with sudo on most distros).<BR>
Network Namespace Basics<BR>
To create a new netns use the following command:
<BR><BR>
# ip netns add &lt;network namespace name&gt;
<BR><BR>
A list of all currently defined netns is provided by ip netns list.
<BR><BR>
Interfaces can be assigned to a netns with the ip link command:
<BR><BR>
# ip link set &lt;interface name netns &lt;netns name&gt;
<BR><BR>
If you run ip link list afterwards such an interface won&#180;t be seen as it is only available in the configured netns.
<BR><BR>
So to actually list the interface in a specific netns it&#180;s required to be able to run commands in a specific netns. This can be done with the ip netns exec command. So to get a list of interfaces defined in a specific netns use:
<BR><BR>
# ip netns exec &lt;netns name&gt; ip link list
<BR><BR>
If only one physical interface is available, or if you don&#180;t want to assign physical interfaces to the netns for other reasons, it&#180;s possible to create virtual Ethernet interface pairs (veth, provided via CONFIG_VETH). These are like a bi-directional pipe (i.e. what&#180;s written to one end comes out the other and vice-versa) of which one end is placed inside the netns and the other stays outside in the &quot;default&quot; or &quot;global&quot; namespace.
<BR><BR>
To create such a pair use:
<BR><BR>
# ip link add &lt;interface name 1&gt; type veth peer name &lt;interface name 2&gt;
<BR><BR>
This creates two connected Enthernet interfaces with the given names. One is assigned to a netns (via ip link) the other is not (it doesn&#180;t matter which one and it&#180;s also possible to assign both interfaces to two different netns to connect them). How the outer interface is used depends on the use case, it may be put inside a bridge, or used in routing rules to route traffic to and from a netns.
<BR><BR>
Since interfaces assigned to a netns are disabled they have to be enabled first, and they will probably also require an IP address, which can be done with:
<BR><BR>
# ip netns exec &lt;netns name&gt; ip addr add x.x.x.x/x dev &lt;iface name&gt;<BR>
# ip netns exec &lt;netns name&gt; ip link set dev &lt;iface name&gt; up
<BR><BR>
Similar to these commands routes or firewall rules may be added by running ip route or iptables inside a specific netns via ip netns exec &lt;command.
<BR><BR>
<B>Running a single instance of strongSwan inside a netns is straight-forward. Simply run ipsec commands via ip netns exec ipsec &lt;command&gt;.</B><BR>
But more interesting is probably running multiple instances of strongSwan in separate namespaces. Because all netns share the same file system this is a bit tricky.<BR>
Luckily, the ip netns exec command provides a helpful feature: Every file found in /etc/netns/&lt;name&gt;/ for a given netns is bind mounted over its corresponding counterpart in /etc (so it has to exist there). This can be used to provide different config files for each instance, but may also be used to redirect the so called piddir, where the charon and starter daemons create their PID files and UNIX sockets (the default is to use /var/run, which would conflict if multiple instances would use it).<BR>
To do so make sure strongSwan is configured with --sysconfdir=/etc and e.g. --with-piddir=/etc/ipsec.d/run. Then after building and installing strongSwan the piddirs can be created as follows:
<BR><BR>
# mkdir -p /etc/ipsec.d/run<BR>
# mkdir -p /etc/netns/&lt;netns name 1&gt;/ipsec.d/run<BR>
# mkdir -p /etc/netns/&lt;netns name 2&gt;/ipsec.d/run<BR>
https://wiki.strongswan.org/projects/strongswan/wiki/Netns
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">StrongSwan is an <u><B>OpenSource IPsec-based VPN Solution for Linux</B></u> * runs both on Linux 2.4 (KLIPS IPsec) and Linux 2.6 (NETKEY IPsec) kernels * implements both the IKEv1 and IKEv2 (RFC 4306) key exchange protocols * Fully tested support of IPv6 IPsec tunnel and transport connections * Dynamical IP address and interface update with IKEv2 MOBIKE (RFC 4555) * Automatic insertion and deletion of IPsec-policy-based firewall rules * Strong 128/192/256 bit AES or Camellia encryption, 3DES support * NAT-Traversal via UDP encapsulation and port floating (RFC 3947) * Dead Peer Detection (DPD, RFC 3706) takes care of dangling tunnels * Static virtual IPs and IKEv1 ModeConfig pull and push modes * XAUTH server and client functionality on top of IKEv1 Main Mode authentication * Virtual IP address pool managed by IKE daemon or SQL database * Secure IKEv2 EAP user authentication (EAP-SIM, EAP-AKA, EAP-MSCHAPv2, etc.) * Optional relaying of EAP messages to AAA server via EAP-RADIUS plugin * Support of IKEv2 Multiple Authentication Exchanges (RFC 4739) * Authentication based on X.509 certificates or preshared keys * Generation of a default self-signed certificate during first strongSwan startup * Retrieval and local caching of Certificate Revocation Lists via HTTP or LDAP * Full support of the Online Certificate Status Protocol (OCSP, RCF 2560). * CA management (OCSP and CRL URIs, default LDAP server) * Powerful IPsec policies based on wildcards or intermediate CAs * Group policies based on X.509 attribute certificates (RFC 3281) * Storage of RSA private keys and certificates on a smartcard (PKCS #11 interface) * Modular plugins for crypto algorithms and relational database interfaces * Support of elliptic curve DH groups and ECDSA certificates (Suite B, RFC 4869) * Optional built-in integrity and crypto tests for plugins and libraries * Smooth Linux desktop integration via the strongSwan NetworkManager applet This package triggers the installation of both, IKEv1 and IKEv2 daemons.<BR>
https://fr2.rpmfind.net
<BR><BR>
<B>Block network access of a process</B>, unix.stackexchange.com<BR>
It is possible to block the (outgoing) network access of a single process in different ways: by unshare / nsenter, ip-netns, iptables, apparmor and firejail.<BR>
https://unix.stackexchange.com/questions/68956/block-network-access-of-a-process
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">Notice: We use right above mentioned command &quot;<B>unshare</B>&quot; for starting <B>firejail</B> (for sandboxing <B>firefox</B> (including for example libtrace.so of different file-sizes the versions)  by the command &quot;unshare firejail...&quot; etc)., psad (/etc/init.d/psad: prog=&quot;<i>unshare</i> psad&quot;), uuidd (/etc/init.d/uuidd with prog=&quot;unshare uuidd&quot; and &quot;daemon.... unshare &#36;DAEMON&quot; within the start-function, apparmor-dbus out of /etc/rc.local, messagebus (/etc/init.d/messagebus with processname=&quot;unshare dbus-daemon&quot;, dbus), gpm (/etc/init.d/gpm with &quot;daemon &quot;unshare /usr/sbin/gpm&quot; -m ... ), cups (/etc/init.d/cups with &quot;daemon &quot;unshare cups&quot; ...), dm (again in /etc/init.d/dm), X (X11, ServerCmd=/usr/bin/unshare /usr/bin/X within (resp., to be more concrete, follow the linking of) /usr/share/config/kdm/kdmrc: enhance the command for execution of X with unshare: &quot;ServerCmd=/usr/bin/unshare /usr/bin/X&quot; and &quot;Willing=/usr/bin/unshare /usr/share/X11/xdm/Xwilling&quot;), kdm (/usr/share/config/kdm/kdmrc with &quot;Preloader=/usr/bin/unshare /usr/bin/preloadkde&quot;, haldaemon (/etc/init.d/haldaemon), udevd (in /sbin/start_udev with &quot;else /usr/bin/unshare /sbin/udevd -d ...&quot;), polkitd (/etc/xdg/polkit-gnome-authentification-agent-1.desktop: &quot;exec=unshare /usr/libexec/polkit-gnome-authentication-agent-1&quot; and /etc/xdg-polkit-kde-authentification-agent-1.desktop: &quot;exec=unshare /usr/libexec/polkit-kde-authentification-agent-1 ), konsole and xterm, dolphin, drakconf.real resp. drakconf (MCC), network-ready-games like gl-117, trackballs, extremetuxracer, marsshooter, freedroidrpg, orbital, xonotic etc. in future (do them all just to be careful)! Some kernel-modules like for usblp for USB-printer by unshare (for example in /etc/rc.loca): unshare COMMA-ABOVE-FOR-EXECUTIONmodprobe usblpCOMMA-ABOVE-FOR-EXECUTION,
graphic-card (just experimentel): unshare COMMA-ABOVE-FOR-EXECUTIONi915COMMA-ABOVE-FOR-EXECUTION, mainboard (just experimentel!): unshare COMMA-ABOVE-FOR-EXECUTIONlpc_ichCOMMA-ABOVE-FOR-EXECUTION, (less experimentel): unshare COMMA...modprobe videoCOMMA..., but still NOT functioning are those &quot;unshared&quot; ones for internal kernel-processs like kernel-daemon netns (/etc/rc.local): &quot;unshare --net --mount -p pidof netns&quot;, oom_reaper (/etc/rc.local): &quot;unshare --net --mount -p pidof oom_reaper&quot;, migration/0 (/etc/rc.local): &quot;unshare --net --mount -p pidof migration/0&quot;. Also try firejail for a <B>sandboxed network namespace</B> by option net, netfilter, join-network=name|pid and netns, see man firejai, section join-network for good examples also doing fine with Linfw3 (through iptables-restore and iptables-save)  or try slirp4netns (OpenSuSE 15.2).
<BR><BR>
rsyslog (runlevel-init-script /etc/init.d/rsyslog, line with daemon: .daemon --pidfile=&quot;&#36;PIDFILE&quot; <B>unshare</B> &#36;exec -i &quot;&#36;PIDFILE&uqot; &#36;SYSLOGD_OPTIONS
<BR><BR>
... eventually try the same with unshare within /etc/init.d/cups!
<BR><BR>
<B><u>Especially hardening the root- and suid-processes by unshare makes the computer secure (as quit all remaining riscs do depend from kernel-processes now) and, as we, believe it or not, really meant having recognized, very <i>mouseclick-fast</i> too</u></B>!
<BR><BR>
It couldn&#180;t be easier and more simple to contribute to the highest security level ever: You just have to type &quot;unshare&quot; right before quit each program&#180t;s and daemon&#180;s (scripts out of /etc/init.d) start, regardless from starting by terminal, out of the menu or by any runlevel-init-script and script ! 
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B><u>Always open resp. start programs resp. applications not allowed to communicate in any net with unshare or with adequate options of firejail, even within the terminal, k-menu, context-menu (service-menu), directory desktop, quick starter and quick launcher! Use unshare even for firejail itself, especially whenever firejail got a sandbox for the a browser like firefox: we show the complete resulting command for this case further below!</u></B>
<BR><BR>
OK, we show the meant command to start Tor and Firefox bt Firejail through unshare ( unexplaineds ) from further below already right at this place:
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">sg surfgroup &quot;unshare firejail --nice=19 --profile=/etc/firejail/firefox.profile /usr/lib64/firefox/firefox --no-remote &amp;&quot; &amp;&amp; sg surfgroup &quot;unshare firejail --nice=19 --profile=/etc/firejail/palemoon.profile tor -f /home/surfuser/torrc&quot; &amp;&amp; export RESOLV_HOST_CONF=&quot;/etc/hosts&quot; 
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>watchdogd</B>: How can I disable a watchdog, once it has been enabled?<BR>
Normally to shut down the watchdog driver you have to write a &#180;V&#180; character to /dev/watchdog which you could do from a root bash prompt just with:
<BR><BR>
echo &#180;V&#180; &gt; /dev/watchdog
<BR><BR>  
However, before you try to create your own watchdog driver take a look at the existing Linux watchdog daemon to see, if it can do the job. A good start is my page here: http://www.sat.dundee.ac.uk/~psc/watchdog/Linux-Watchdog.html<BR>
https://unix.stackexchange.com/questions/144588/how-can-i-disable-a-watchdog-once-it-has-been-enabled
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><font color="green" style="font-size: 12pt"><B>Increase kernel integrity with disabled Linux kernel modules loading<BR>
Increasing Linux kernel integrity<BR>
Disable loading kernel module on Linux systems</B></font>, linux-audit.com<BR>
The Linux kernel can be configured to disallow loading new kernel modules. This feature is especially useful for high secure systems, or if you care about securing your system to the fullest. In this article, we will have a look at the configuration of this option. At the same time allowing legitimate kernel modules to be loaded.<BR>
Disable kernel modules<BR>
Newer kernel modules have a sysctl variable named kernel.modules_disabled.<BR>
Sysctl is the tool which allows you to see and change kernel settings of a running system. The related /etc/sysctl.conf file is used to ensure that your settings are also used at the next boot of the system.<BR>
The sysctl key kernel.modules_disabled is very straightforward. If it contains a &quot;1&quot; it will disable loading new modules, where a&quot;0&quot; will still allow loading them.<BR>
Using this option will be a great protection against loading malicious kernel modules. For example, it may help to counter rootkits. Needless to say, but when someone was already been able to gain root access, you have a serious problem. Still, setting this security measure can be useful to achieve maximum hardening of your Linux system. An altered script or program has no chance of loading things you didn&#180;t specifically approve.<BR>
[...] By default, the sysctl key is set to&quot;0&quot;, which means new modules can be loaded. This is a safe default for systems but also allows malicious modules to be loaded.
<BR><BR>
# sysctl -a | grep modules<BR>
kernel.modules_disabled = 0
<BR><BR>
Now we disable loading new modules, by using the sysctl key and set it to&quot;1&quot;. There are two ways of doing it, using sysctl directly or echo the value to a file on the pseudo file system /proc, which holds the kernel settings.
<BR><BR>
# echo 1 &gt; /proc/sys/kernel/modules_disabled
<BR><BR>
Protection against re-enabling<BR>
You might think that loading a kernel module is as simple as re-enabling the option and then still load your kernel module. The kernel has a built-in protection, to avoid this from happening. Trying to set the value back to&quot;0&quot; will result in an&quot;invalid argument&quot; message.<BR>
Sysctl showing invalid argument when trying to set value<BR>
As can be seen, sysctl will say the value is set to&quot;0&quot;. However, the value isn&#180;t applied, as this key is read-only. Slightly confusing, and therefore always good to check the value again.
<BR><BR>
# sysctl kernel.modules_disabled<BR>
kernel.modules_disabled = 1
<BR><BR>
As expected, the value is still set to&quot;1&quot;.<BR>
Disable module loading after boot time
<BR><BR>
By configuring the /etc/sysctl.conf file we can disallow the loading of kernel modules at boot time. Simply add the related line, with the value&quot;1&quot; as shown in the example.
Caveat: Things might break<BR>
Depending on your environment, you might be careful with using this option. It may be working very well on servers, but not on desktop systems. The reason is the type of usage is different, especially when it comes with loading new kernel modules. For example inserting a USB drive, mouse or network functionality might break. So before deploying the option, make sure you test these common use cases.<BR>
Hybrid option<BR>
Instead of enabling the option directly via /etc/sysctl.conf, it might be better to activate this setting after booting and loading required modules.<BR>
Your startup script could be looking like
<BR><BR>
<font color="green" style="font-size: 9pt">#!/bin/sh/ # code by Gooken<BR>
sleep 45 # original text: 300; decrease this time, if usb and all modules are working fine, if not, test checkout lsmod and increase it<BR>
# insmod &lt;module&gt;<BR>
# insmod &lt;module&gt;<BR>
modprobe usb_storage<BR>
modprobe vfat<BR>
modprobe fat<BR>
modprobe nls_iso8859_1<BR>
modprobe nls_cp437<BR>
modprobe glue_helper    <BR>
modprobe dax<BR>
modprobe uinput<BR>
modprobe ahci<BR>
modprobe libahci<BR>
modprobe ecb<BR>
modprobe af_alg<BR>
modprobe algif_skcipher<BR>
modprobe lrw<BR>
modprobe cbc <BR>
modprobe aes_x86_64 # for USB, that might be LUKS-encrypted<BR>
modprobe twofish_common<BR>
modprobe twofish_x86_64_3way<BR>
modprobe twofish_x86_64<BR>
modprobe twofish_generic<BR>
echo 1 &gt; /proc/sys/kernel/modules_disabled</font>
<BR><BR>
Usually to get iptables working, these are the related modules: iptables, x_tables, iptable_filter.<BR>
Depending on your Linux distribution, the startup should be loaded as late as possible. If you have /etc/rc.local available, that is usually a safe bet.<BR>
Do you use this option already? Or found some other caveats? Like to hear your feedback in the comments.<BR>
https://linux-audit.com/increase-kernel-integrity-with-disabled-linux-kernel-modules-loading/
<BR><BR>
In other words: write the small routine from above into a runlevel-init-script (for example this of /etc/init.d/linfw3 renamed to /etc/init.d/modules-disabled) right into the start function, where it is executed by the command start &amp; (and not just the command &quot;start&quot;) in the background. Before this is done, remove all code not needed anymore from this script. Now the script itself is executed not as usual by chkconfig, ntsysv7, the MCC (drakconf) or systemd, but only out of /etc/rc.local by the command &quot;sh /etc/init.d/modules-disabled start&quot;.
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>kernel.printk.* in /etc/sysctl.conf</B><BR>
kernel.printk =0 6 7 0 # The four values in printk denote: console_loglevel, default_message_loglevel, minimum_console_loglevel and default_console_loglevel respectively.<BR>
0=emerg, 1=alert, 2=crit, ...<BR>
kernel.printk_ratelimit = 5 # period to wait in seconds<BR>
kernel.printk_ratelimit_burst = 60 # max. amount same time<BR>
https://unix.stackexchange.com/questions/13019/description-of-kernel-printk-values
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Regelm&auml;&szlig;ig Logs analysieren</B><BR>
Speichere logs in vorgesehene Log-Server. Damit wird verhindert, dass Eindringlinge auf einfache Art Modifikationen an Log-Dateien vornehmen. Hier noch einmal namentlich die in Linux &uuml;blichen Log-Dateien und ihre Verwendung:
<BR><BR>
/var/log/message - Hier protokolliert mehr oder weniger das gesamte System<BR>
/var/log/auth.log - Authentifizierung<BR>
/var/log/kern.log - Kernel-Logs.<BR>
/var/log/cron.log - Crond-Logs (cron job).<BR>
/var/log/maillog - Mailserver-Logs<BR>
/var/log/boot.log - System-boot-Log<BR>
/var/log/mysqld.log - Logdatei des MySQL-Datenbankservers<BR>
/var/log/secure - Authentifizierung<BR>
/var/log/utmp oder /var/log/wtmp : Protokolliert die records-Dateien<BR>
/var/log/yum.log: Yum-Logdatei<BR>
https://www.tecmint.com/linux-server-hardening-security-tips/
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Prevent too informative system information in logfiles</B><BR>
The system-log-level reach from debug over info, warning up to emerg. A detailed protocolling is something to think about, they can be read out by users as much as processes. For outputs of dmesg log-level &quot;warning&quot; might restrict delivered protocol-information:
<BR><BR>
/etc/init.d/rklogd<BR>
RKLOGD_OPTIONS=&quot;-c 4&quot;
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Using and customizing logcheck</B><BR>
The logcheck package in Debian is divided into the three packages logcheck (the main program), logcheck-database (a database of regular expressions for the program) and logtail (prints loglines that have not yet been read). The Debian default (in /etc/cron.d/logcheck) is that logcheck is run every hour and after reboots.<BR>
This tool can be quite useful if properly customized to alert the administrator of unusual system events. Logcheck can be fully customized so that it sends mails based on events found in the logs and worthy of attention. The default installation includes profiles for ignored events and policy violations for three different setups (workstation, server and paranoid). The Debian package includes a configuration file /etc/logcheck/logcheck.conf, sourced by the program, that defines which user the checks are sent to. It also provides a way for packages that provide services to implement new policies in the directories: /etc/logcheck/cracking.d/_packagename_, /etc/logcheck/violations.d/_packagename_, /etc/logcheck/violations.ignore.d/_packagename_, /etc/logcheck/ignore.d.paranoid/_packagename_, /etc/logcheck/ignore.d.server/_packagename_, and /etc/logcheck/ignore.d.workstation/_packagename_. However, not many packages currently do so. If you have a policy that can be useful for other users, please send it as a bug report for the appropriate package (as a wishlist bug). For more information read /usr/share/doc/logcheck/README.Debian.<BR>
The best way to configure logcheck is to edit its main configuration file /etc/logcheck/logcheck.conf after installation. Change the default user (root) to whom reports should be mailed. You should set the reportlevel in there, too. logcheck-database has three report levels of increasing verbosity: workstation, server, paranoid. "server" being the default level, paranoid is only recommended for high-security machines running as few services as possible and workstation for relatively sheltered, non-critical machines. If you wish to add new log files just add them to /etc/logcheck/logcheck.logfiles. It is tuned for default syslog install.<BR>
Once this is done you might want to check the mails that are sent, for the first few days/weeks/months. If you find you are sent messages you do not wish to receive, just add the regular expressions (see regex(7) and egrep(1)) that correspond to these messages to the /etc/logcheck/ignore.d.reportlevel/local. Try to match the whole logline. Details on howto write rules are explained in /usr/share/doc/logcheck-database/README.logcheck-database.gz. It&#180;s an ongoing tuning process; once the messages that are sent are always relevant you can consider the tuning finished. Note that if logcheck does not find anything relevant in your system it will not mail you even if it does run (so you might get a mail only once a week, if you are lucky). 
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Configure, where alerts are sent</B><BR>
Debian comes with a standard syslog configuration (in /etc/syslog.conf) that logs messages to the appropriate files depending on the system facility. You should be familiar with this; have a look at the syslog.conf file and the documentation if not. If you intend to maintain a secure system you should be aware of where log messages are sent so they do not go unnoticed.<BR>
For example, sending messages to the console also is an interesting setup useful for many production-level systems. But for many such systems it is also important to add a new machine that will serve as loghost (i.e. it receives logs from all other systems).<BR>
Root&#180;s mail should be considered also, many security controls (like snort) send alerts to root&#180;s mailbox. This mailbox usually points to the first user created in the system (check /etc/aliases). Take care to send root&#180;s mail to some place where it will be read (either locally or remotely).<BR>
There are other role accounts and aliases on your system. On a small system, it&#180;s probably simplest to make sure that all such aliases point to the root account, and that mail to root is forwarded to the system administrator&#180;s personal mailbox.
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Firefox: Copy the secure libssl*, libnss* and libnspr4* of tor-Browser (ESR) or out of an actual Firefox like 63 to Firefox (ESR, same version as tor-browser) into /usr/lib64/firefox/ followed by chown root:root and chmod 755 upon them.</B>
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Protecting against ARP-attacks</B><BR>
When you don&#180;t trust the other boxes on your LAN (which should always be the case, because it&#180;s the safest attitude) you should protect yourself from the various existing ARP attacks.<BR>
As you know the ARP protocol is used to link IP addresses to MAC addresses (see RFC826 for all the details). Every time you send a packet to an IP address an ARP resolution is done (first by looking into the local ARP cache then, if the IP isn&#180;t present, in the cache by broadcasting an ARP query) to find the target&#180;s hardware address. All the ARP attacks aim to fool your box into thinking, that box B&#180;s IP address is associated to the intruder&#180;s box&#180;s MAC address; Then every packet that you want to send to the IP associated to box B will be send to the intruder&#180;s box...<BR>
Those attacks (ARP cache poisoning, ARP spoofing...) allow the attacker to sniff the traffic even on switched networks, to easily hijack connections, to disconnect any host from the network... ARP attacks are powerful and simple to implement, and several tools exists, such as arpspoof from the dsniff package or arpoison.<BR>
However, there is always a solution:
<BR><BR>
Use a static ARP cache. You can set up &quot;static&quot; entries in your ARP cache with:
<BR><BR>
arp -s host_name hdwr_addr
<BR><BR>
By setting static entries for each important host in your network you ensure that nobody will create/modify a (fake) entry for these hosts (static entries don&#180;t expire and can&#180;t be modified) and spoofed ARP replies will be ignored.
Detect suspicious ARP traffic. You can use arpwatch, karpski or more general IDS that can also detect suspicious ARP traffic (snort, prelude...).<BR>
Implement IP traffic filtering validating the MAC address.
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Secure up services running on your system</B><BR>
SSH, Squid, FTP, X-Window-System, Display-Manager, Druckerzugriff, Mail-Dienst, BIND, Apache, Finger, chroot- and suid-paranoia, Cleartext-passwort-paranoia, deactivating NIS, deactivating RPC-services:<BR> 
https://www.debian.org/doc/manuals/securing-debian-howto/ch-sec-services.de.html
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Package signing</B><BR>
https://www.debian.org/doc/manuals/securing-debian-howto/ch7.de.html
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Remote vulnerability assessment tools</B><BR>
The tools provided by Debian to perform remote vulnerability assessment are:
<BR><BR>
nessus, raccess, nikto (whisker&#180;s replacement)
<BR><BR>
By far, the most complete and up-to-date tools is nessus which is composed of a client (nessus) used as a GUI and a server (nessusd) which launches the programmed attacks. Nessus includes remote vulnerabilities for quite a number of systems including network appliances, ftp servers, www servers, etc. The latest security plugins are able even to parse a web site and try to discover which interactive pages are available which could be attacked. There are also Java and Win32 clients (not included in Debian) which can be used to contact the management server. 
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Network scanner tools</B><BR>
Debian does provide some tools used for remote scanning of hosts (but not vulnerability assessment). These tools are, in some cases, used by vulnerability assessment scanners as the first type of "attack" run against remote hosts in an attempt to determine remote services available. Currently Debian provides:
<BR><BR>
nmap, xprobe, p0f, knocker, isic, hping2, icmpush, nbtscan (for SMB /NetBIOS audits), fragrouter, strobe (in the netdiag package), irpas
<BR><BR>
While xprobe provide only remote operating system detection (using TCP/IP fingerprinting, nmap and knocker do both operating system detection and port scanning of the remote hosts. On the other hand, hping2 and icmpush can be used for remote ICMP attack techniques.<BR>
Designed specifically for SMB networks, nbtscan can be used to scan IP networks and retrieve name information from SMB-enabled servers, including: usernames, network names, MAC addresses...<BR>
On the other hand, fragrouter can be used to test network intrusion detection systems and see if the NIDS can be eluded by fragmentation attacks.
<BR><BR> 
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Virtual Private Networks</B><BR>
A virtual private network (VPN) is a group of two or more computer systems, typically connected to a private network with limited public network access, that communicate securely over a public network. VPNs may connect a single computer to a private network (client-server), or a remote LAN to a private network (server-server). VPNs often include the use of encryption, strong authentication of remote users or hosts, and methods for hiding the private network&#180;s topology.<BR>
Debian provides quite a few packages to set up encrypted virtual private networks:
<BR><BR>
vtun, tunnelv (non-US section), cipe-source, cipe-common, tinc, secvpn, pptpd, openvpn, openswan (http://www.openswan.org/)
<BR><BR>
The OpenSWAN package is probably the best choice overall, since it promises to interoperate with almost anything that uses the IP security protocol, IPsec (RFC 2411). However, the other packages listed above can also help you get a secure tunnel up in a hurry. The point to point tunneling protocol (PPTP) is a proprietary Microsoft protocol for VPN. It is supported under Linux, but is known to have serious security issues.<BR>
For more information see the VPN-Masquerade HOWTO (covers IPsec and PPTP), VPN HOWTO (covers PPP over SSH), Cipe mini-HOWTO, and PPP and SSH mini-HOWTO.<BR>
Also worth checking out is Yavipin, but no Debian packages seem to be available yet. 
<BR><BR> 
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Reaction in the case of user-idle-state</B>, https://wiki.centos.org/HowTos/OS_Protection<BR>
Now that we&#180;ve restricted the login options for the server, lets kick off all the idle folks. To do this, we&#180;re going to use a bash variable in /etc/profile. There are some reasonably trivial ways around this of course, but it&#180;s all about layering the security.
<BR><BR>
echo &quot;Idle users will be removed after 15 minutes&quot;<BR>
echo &quot;readonly TMOUT=900&quot; &gt;&gt; /etc/profile.d/os-security.sh<BR>
echo &quot;readonly HISTFILE&quot; &gt;&gt; /etc/profile.d/os-security.sh<BR>
chmod +x /etc/profile.d/os-security.sh
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Restrictions for cron and at</B>,  https://wiki.centos.org/HowTos/OS_Protection<BR>
In some cases, administrators may want the root user or other trusted users to be able to run cronjobs or timed scripts with at. In order to lock these down, you will need to create a cron.deny and at.deny file inside /etc with the names of all blocked users. An easy way to do this is to parse /etc/passwd. The script below will do this for you.
<BR><BR>
echo &quot;Locking down Cron&quot;<BR>
touch /etc/cron.allow<BR>
chmod 600 /etc/cron.allow<BR>
awk -F: &#180;{print &#36;1}&#180; /etc/passwd | grep -v root &gt; /etc/cron.deny<BR>
echo &quot;Locking down AT&quot;<BR>
touch /etc/at.allow<BR>
chmod 600 /etc/at.allow<BR>
awk -F: &#180;{print &#36;1}&#180; /etc/passwd | grep -v root &gt; /etc/at.deny
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Lockdown Cronjobs</B><BR>
Cron has it&#180;s own built in feature, where it allows to specify who may, and who may not want to run jobs. This is controlled by the use of files called /etc/cron.allow and /etc/cron.deny. To lock a user using cron, simply add user names in cron.deny and to allow a user to run cron add in cron.allow file. If you would like to disable all users from using cron, add the &#180;ALL&#180; line to cron.deny file.
<BR><BR>
# echo ALL &gt;&gt;/etc/cron.deny<BR>
Cron Scheduling Examples in Linux: https://www.tecmint.com/11-cron-scheduling-task-examples-in-linux/<BR>
https://www.tecmint.com/linux-server-hardening-security-tips/
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Sysctl Security</B>, https://wiki.centos.org/HowTos/OS_Protection<BR>
Next we need to have a look inside /etc/sysctl.conf and make some basic changes. If these lines exist, modify them to match below. If they don&#180;t exist, simply add them in. If you have multiple network interfaces on the server, some of these may cause issues. Test these before you put them into production. If you want to know more about any of these options, install the kernel-doc package, and look in Documentation/networking/ip-sysctl.txt
<BR><BR>
<font color="green" style="font-size: 9pt"># Kernel sysctl configuration file<BR>
# /etc/sysctl.conf<BR>
# test with sysctl -p /etc/sysctl.conf<BR>
#  additionally from http://joshrendek.com/2013/01/securing-ubuntu/ resp. http://www.nsa.gov/ia/_files/os/redhat/rhel5-guide-i731.pdf 
# Turn on execshild<BR>
# kernel.exec-shield = 1<BR>
# Controls the System Request debugging functionality of the kernel
kernel.sysrq =0
# Controls whether core dumps will append the PID to the core filename.
# Useful for debugging multi-threaded applications.
kernel.core_uses_pid = 0
kernel.dmesg_restrict = 1<BR>
kernel.randomize_va_space = 1<BR>
kernel.ctrl-alt-del =1<BR>
kernel.panic =0<BR>
kernel.acct =4 2 30<BR>
kernel.printk =4<BR>
kernel.shmall =-1<BR>
kernel.shmmax =134217728<BR>
# Allow for more PIDs (to reduce rollover problems); may break some programs 32768<BR>
kernel.pid_max = 65536<BR>
kernel.printk_ratelimit = 5 # period to wait in seconds<BR>
kernel.printk_ratelimit_burst = 60 # max. amount same time<BR>
vm.overcommit_memory=2 # <B>mouseclick-fast</B><BR>
vm.overcommit_ratio=150 # <B>4 GB RAM + 2 GB SWAP, mouseclick-fast</B><BR>
# or: vm.overcommit_kbytes=<BR>
vm.page-cluster =3<BR>
vm.oom_dump_tasks =0<BR>
dev.raid.speed_limit_min =1000<BR>
dev.raid.speed_limit_max =200000<BR>
# Optimization for port usefor LBs<BR>
# Increase system file descriptor limit<BR>
fs.file-max = 65535<BR>
#<BR>
# For binary values, 0 is disabled, 1 is enabled.  See sysctl(8) and<BR>
net.ipv4.ip_forward = 0<BR>
net.ipv4.conf.all.send_redirects = 0<BR>
net.ipv4.conf.default.send_redirects = 0<BR>
net.ipv4.tcp_max_syn_backlog = 1280<BR>
net.ipv4.icmp_echo_ignore_broadcasts = 1<BR>
net.ipv4.conf.all.accept_source_route = 0<BR>
net.ipv4.conf.all.accept_redirects = 0<BR>
net.ipv4.conf.all.secure_redirects = 0<BR>
net.ipv4.conf.all.log_martians = 1<BR>
net.ipv4.conf.default.accept_source_route = 0<BR>
net.ipv4.conf.default.accept_redirects = 0<BR>
net.ipv4.conf.default.secure_redirects = 0<BR>
net.ipv4.icmp_echo_ignore_broadcasts = 1<BR>
net.ipv4.icmp_ignore_bogus_error_responses = 1<BR>
net.ipv4.tcp_syncookies = 1<BR>
net.ipv4.conf.all.rp_filter = 1<BR>
net.ipv4.conf.default.rp_filter = 1<BR>
net.ipv4.tcp_timestamps = 0<BR>
net.ipv4.tcp_window_scaling = 1<BR>
net.ipv4.tcp_fin_timeout =3600<BR>
net.ipv4.tcp_keepalive_time =7200<BR>
net.ipv4.tcp_keepalive_probes =7<BR>
net.ipv4.tcp_syn_retries =6<BR>
net.ipv4.tcp_retries1 =1<BR>
net.ipv4.tcp_retries2 =3<BR>
net.ipv4.tcp_retrans_collapse =1<BR>
net.ipv4.tcp_sack =1<BR>
net.ipv4.ip_default_ttl =64<BR>
net.ipv4.ipfrag_time =30<BR>
net.ipv4.ip_no_pmtu_disc =0<BR>
net.unix.max_dgram_qlen =10<BR>
# Increase system IP port limits<BR>
net.ipv4.ip_local_port_range = 2000 65000<BR>
# Increase TCP max buffer size setable using setsockopt()<BR>
net.ipv4.tcp_rmem = 4096 87380 8388608<BR>
net.ipv4.tcp_wmem = 4096 87380 8388608<BR>
net.ipv6.conf.eth0.disable_ipv6=1 <BR>
# Tune IPv6<BR>
net.ipv6.conf.default.router_solicitations = 0<BR>
net.ipv6.conf.default.accept_ra_rtr_pref = 0<BR>
net.ipv6.conf.default.accept_ra_pinfo = 0<BR>
net.ipv6.conf.default.accept_ra_defrtr = 0<BR>
net.ipv6.conf.default.autoconf = 0<BR>
net.ipv6.conf.default.dad_transmits = 0<BR>
net.ipv6.conf.default.max_addresses = 0<BR>
# Increase Linux auto tuning TCP buffer limits<BR>
# min, default, and max number of bytes to use<BR>
# set max to at least 4MB, or higher if you use very high BDP paths<BR>
net.core.rmem_max = 8388608<BR>
net.core.wmem_max = 8388608<BR>
net.core.netdev_max_backlog = 5000<BR>
# net.core.default_qdisc=sch_fq_codel<BR>
net.ipv4.tcp_congestion_control=cubic<BR>
# BBR
# net.core.default_qdisc=fq 
# net.ipv4.tcp_congestion_control=bbr
# If you set this variable to 1 then cd tray will close automatically when the <BR>
# cd drive is being accessed.<BR>
# Setting this to 1 is not advised when supermount is enabled<BR>
# (as it has been known to cause problems)<BR>
dev.cdrom.autoclose=1<BR>
# removed to fix some digital extraction problems <BR>
# dev.cdrom.check_media=1<BR>
# to be able to eject via the device eject button (magicdev)<BR>
dev.cdrom.lock=0
<BR><BR>
#<BR>
# BBR - Netwerkturbo f&uuml;r Linux<BR>
# Die neue Flusskontrolle erscheint aber auch ideal f&uuml;r Server im lokalen Netzwerk, die hin und wieder die Netzwerkbandbreite voll aussch&ouml;pfen sollen, etwa bei der &Uuml;bertragung gro&szlig;er Dateien bei NAS-Ger&auml;ten, Nextcloud- oder 
# Streamingservern. <BR>
# https://www.pcwelt.de/ratgeber/BBR-Netzwerkturbo-fuer-Linux-im-Ueberblick-10612165.html
# net.core.default_qdisc=fq <BR>
net.ipv4.tcp_congestion_control=bbr
<BR>
# Increase Linux auto tuning TCP buffer limits<BR>
# min, default, and max number of bytes to use<BR>
# set max to at least 4MB, or higher if you use very high BDP paths<BR>
net.core.rmem_max =212992<BR>
net.core.wmem_max =212992<BR>
net.core.netdev_max_backlog = 5000<BR>
#<BR>
kernel.sysrq = 0<BR>
kernel.core_uses_pid = 1<BR>
fs.file-max=65535<BR>
kernel.pid_max=65536<BR>
net.ipv4.tcp_syncookies = 1<BR>
kernel.msgmnb = 65536<BR>
kernel.msgmax = 65536<BR>
kernel.shmmax = 134217728<BR>
kernel.shmall = 4294967296<BR>
kernel.randomize_va_space = 2<BR>
net.ipv4.tcp_window_scaling=1<BR>
net.ipv4.tcp_timestamps=0<BR>
net.ipv4.conf.all.log_martians=1# sysctl.conf(5) for more details.<BR>
net.ipv6.conf.lo.use_tempaddr = 0<BR>
# Disables IP dynaddr<BR>
net.ipv4.ip_dynaddr = 1<BR>
# Disable ECN<BR>
net.ipv4.tcp_ecn = 1<BR>
# Controls source route verification<BR>
net.ipv4.conf.all.rp_filter =1<BR>
net.ipv4.conf.default.rp_filter = 1<BR>
<BR>
# Do not accept source routing<BR>
net.ipv4.conf.default.accept_source_route = 0<BR>
<BR>
# Controls the System Request debugging functionality of the kernel<BR>
kernel.sysrq =0<BR>
<BR>
# Controls whether core dumps will append the PID to the core filename.<BR>
# Useful for debugging multi-threaded applications.<BR>
kernel.core_uses_pid = 0<BR>
<BR>
kernel.dmesg_restrict = 1<BR>
# If you set this variable to 1 then cd tray will close automatically when the <BR>
# cd drive is being accessed.<BR>
# Setting this to 1 is not advised when supermount is enabled<BR>
# (as it has been known to cause problems)<BR>
dev.cdrom.autoclose=1<BR>
# removed to fix some digital extraction problems <BR>
# dev.cdrom.check_media=1<BR>
<BR>
# to be able to eject via the device eject button (magicdev)<BR>
dev.cdrom.lock=0<BR>
<BR>
# Disable netfilter on bridges.<BR>
#net.bridge.bridge-nf-call-ip6tables = 0<BR>
#net.bridge.bridge-nf-call-iptables = 0<BR>
#net.bridge.bridge-nf-call-arptables = 0<BR>
net.ipv4.ip_forward =0<BR>
net.ipv4.conf.all.send_redirects = 0<BR>
net.ipv4.conf.default.send_redirects = 0<BR>
net.ipv4.tcp_max_syn_backlog =512<BR>
net.ipv4.conf.all.accept_source_route = 0<BR>
net.ipv4.conf.all.accept_redirects = 0<BR>
net.ipv4.conf.default.accept_redirects = 0<BR>
net.ipv4.conf.all.secure_redirects = 0<BR>
net.ipv4.conf.default.accept_source_route = 0<BR>
net.ipv4.conf.default.accept_redirects = 0<BR>
net.ipv4.conf.default.secure_redirects = 0<BR>
net.ipv4.tcp_syncookies = 1<BR>
​<BR>
net.ipv4.ip_local_port_range = 2000 65000<BR>
# Increase TCP max buffer size setable using setsockopt()<BR>
net.ipv4.tcp_rmem = 4096 87380 8388608<BR>
net.ipv4.tcp_wmem = 4096 87380 8388608<BR>
net.ipv6.conf.default.router_solicitations=0<BR>
net.ipv6.conf.default.accept_ra_rtr_pref=0<BR>
net.ipv6.conf.default.accept_ra_pinfo=0<BR>
net.ipv6.conf.default.accept_ra_defrtr=0<BR>
net.ipv6.conf.default.autoconf=0<BR>
net.ipv6.conf.default.dad_transmits=0<BR>
net.ipv6.conf.default.max_addresses=0<BR>
net.ipv4.icmp_echo_ignore_all=1<BR>
net.ipv4.icmp_echo_ignore_broadcasts=1<BR>
net.ipv4.icmp_ignore_bogus_error_responses=1<BR>
net.core.rmem_default =212992<BR>
net.core.wmem_default =212992<BR>
net.ipv4.tcp_fin_timeout =3600<BR>
net.ipv4.tcp_keepalive_time =7200<BR>
net.ipv4.tcp_keepalive_probes =7<BR>
net.ipv4.tcp_syn_retries =6<BR>
net.ipv4.tcp_retries1 =1<BR>
net.ipv4.tcp_retries2 =3<BR>
net.ipv4.tcp_retrans_collapse =1<BR>
net.ipv4.tcp_sack =1<BR>
net.ipv4.ip_default_ttl =64<BR>
net.ipv4.ipfrag_time =30<BR>
net.ipv4.ip_no_pmtu_disc =0<BR>
net.unix.max_dgram_qlen =10<BR>
vm.overcommit_memory =2<BR>
vm.overcommit_ratio=150 # 4 GB RAM + 2 GB SWAP, mausklick-schnell<BR>
# or: vm.overcommit_kbytes=<BR>
vm.page-cluster =3<BR>
kernel.ctrl-alt-del =1<BR>
kernel.panic =0<BR>
kernel.acct =4 2 30<BR>
kernel.printk =4<BR>
kernel.shmall =-1<BR>
kernel.shmmax =134217728<BR>
dev.raid.speed_limit_min =1000<BR>
dev.raid.speed_limit_max =200000<BR>
net.ipv4.conf.all.rp_filter=1</font>
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><font style="font-size: 9pt">Gooken&#180;s excellent <B>DNS-security-concept</B>, details from much further below: <B>&quot;DNS-surf-mask&quot; local (etc/hosts/) for fundamental domain-IP including some blocks, followed by pdnsd (the local DNS-proxy/DNS-server with adjustable long-time storage) and finally tordns (the anonymizing DNS-Server of Tor (the Onion Router), tor-resolve)</B> 
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Deactivate IPv6</B>, https://help.ubuntu.com/community/StricterDefaults<BR>
IPv6 is part of a Linux-kernel since 2.6.28. Such addresses do never change. If IPv6 is configured wrong, it can cause troubles within a network and for DNS-queries.<BR>
IPv6 is enabled on Ubuntu by default. Most firewalls (like LINFW3) only apply to IPv4, and completely ignore IPv6. If you don&#180;t use IPv6 at all, you can prevent it loading at boot time by changing alias net-pf-10 ipv6 to alias net-pf-10 off in /etc/modprobe.d/aliases resp. /etc/modprobe.conf and scheduling a reboot.
<BR><BR>
RedHat Enterprise Linux / CentOS / Fedora Core:<BR>
/etc/modprobe.conf, change line:
<BR><BR>
alias net-pf-10 ipv6<BR>
into:<BR>
alias net-pf-10 off<BR>
alias ipv6 off
<BR><BR>
and restart the computer.
<BR><BR>
RedHat Enterprise Linux / CentOS / Fedora Core / Mandriva:<BR>
Add the following entry to /etc/sysconfig/network:
<BR><BR>
NETWORKING_IPV6=&quot;no&quot;
<BR><BR>
... and restart the system.
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>ktune: Kernel-Tuning </B> resp. by boot-options ( /etc/init.d/ktune, if not already done in /boot/grub/menu.lst)), so make it mouseclick-fast<BR>
/etc/sysctl.d/*<BR>
nano /etc/sysctl.d/01-disable-ipv6.conf<BR>
net.ipv6.conf.all.disable_ipv6 = 1
<BR><BR>
nano /etc/sysctl.d/10-ptrace.conf<BR>
kernel.yama.ptrace.scope=3
<BR><BR>
nano /etc/sysctl.d/50-kptr-restrict.conf<BR>
kernel.kptr_restrict=1
<BR><BR>
nano /etc/sysctl.d/armci.conf<BR>
# Controls the maximum shared segment size, in bytes, siehe auch /etc/sysctl.conf<BR>
kernel.shmmax = 134217728
<BR><BR>
nano /etc/sysctl.d/libvirtd<BR>
 The kernel allocates aio memory on demand, and this number limits the<BR>
# number of parallel aio requests; the only drawback of a larger limit is<BR>
# that a malicious guest could issue parallel requests to cause the kernel<BR>
# to set aside memory.  Set this number at least as large as<BR>
#   128 * (number of virtual disks on the host)<BR>
# Libvirt uses a default of 1M requests to allow 8k disks, with at most<BR>
# 64M of kernel memory if all disks hit an aio request at the same time.<BR>
# fs.aio-max-nr = 1048576
<BR><BR>
Start ktune<BR>
sh /etc/init.d/ktune start
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Deactivate IPv6</B><BR>
This article describes, howto deactivate the IPv6 support for Linux and Windows. Dies kann aus Sicherheitsgr&uuml;nden sinnvoll sein, solange man IPv6 noch nicht produktiv einsetzt. Damit kann verhindert werden, dass man eine IPv6 Adresse erh&auml;lt, sobald ein IPv6 Router Advertisement Daemon in einem Netz verf&uuml;gbar ist. Au&szlig;erdem sind bestehende Firewall Rules oft nicht f&uuml;r IPv6 g&uuml;ltig. In diesem Fall h&auml;tte man dann unter Umst&auml;nden Dienste per IPv6 zug&auml;nglich die man eigentlich mit einer IPv4 Regel unterbunden hat. Unter Linux gibt es das eigene Kommando "ip6tables" zur Verwaltung der IPv6 Firewall Rules.<BR>
    1 Ubuntu<BR>
    2 RHEL / CentOS<BR>
Ubuntu<BR>
In Ubuntu 10.04, 12.04, 14.04 und 16.04 ist IPv6 direkt in den Kernel kompiliert und wird nicht als Modul geladen. Die einfachste Methode um IPv6 zu deaktivieren ist den passenden sysctl Parameter zu setzen. Tempor&auml;r kann dies mit folgendem Kommando erfolgen:
<BR><BR>
echo 1 &gt; /proc/sys/net/ipv6/conf/all/disable_ipv6
<BR><BR>
Um diese Einstellung dauerhaft vorzunehmen bietet es sich an auf die sysctl Funktionalit&auml;ten zur&uuml;ckzugreifen. Daf&uuml;r einfach eine Datei namens /etc/sysctl.d/01-disable-ipv6.conf anlegen mit folgendem Inhalt:
<BR><BR>
net.ipv6.conf.all.disable_ipv6 = 1
<BR><BR>
Nach dem n&auml;chsten Reboot ist IPv6 dann deaktiviert.
<BR><BR>
Am besten kann dies mit dem Kommando &quot;ip addr show&quot; &uuml;berpr&uuml;ft werden. Es darf dann keine Eintr&auml;ge mit dem Text &quot;inet6&quot; mehr geben.
<BR><BR>
ip addr show | grep inet6
<BR><BR>
RHEL / CentOS
<BR><BR>
Unter RHEL 6 / CentOS 6 (with many patches/updates by Jonny Hughes, NY, kann die Deaktivierung von IPv6 ident wie unter Ubuntu via sysctl erfolgen (siehe oben).
<BR><BR>
In RHEL 4 / CentOS 4 ist IPv6 als Modul integriert. Um dieses zu deaktiveren einfach folgende Zeile in der Datei /etc/modprobe.conf hinzuf&uuml;gen:
<BR><BR>
install ipv6 /bin/true
<BR><BR>
Die &Uuml;berpr&uuml;fung, ob es geklappt hat, kann mit dem Kommando &quot;ip addr show | grep inet6&quot; oder alternativ mit dem Kommando
<BR><BR>
lsmod | grep -i ipv6
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>TCP Wrapper</B>,  https://wiki.centos.org/HowTos/OS_Protection<BR>
Next we need to have a look inside /etc/sysctl.conf and make some basic changes. The TCP wrappers can provide a quick and easy method for controlling access to applications linked to them. Examples of TCP Wrapper aware applications are sshd, and portmap. A restrictive example is below. This example blocks everything but ssh:
<BR><BR>
echo &quot;ALL:ALL&quot; &gt;&gt; /etc/hosts.deny<BR>
echo &quot;sshd:ALL&quot; &gt;&gt; /etc/hosts.allow<BR>
echo &quot;ALL:ALL:DENY&quot; &gt;&gt; /etc/hosts.allow<BR>
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Turn on SELinux</B><BR>
Security-Enhanced Linux (SELinux) is a compulsory access control security mechanism provided in the kernel. Disabling SELinux means removing security mechanism from the system. Think twice carefully before removing, if your system is attached to internet and accessed by the public, then think some more on it.<BR>
SELinux provides three basic modes of operation and they are.<BR>
Enforcing: This is default mode which enable and enforce the SELinux security policy on the machine.<BR>
Permissive: In this mode, SELinux will not enforce the security policy on the system, only warn and log actions. This mode is very useful in term of troubleshooting SELinux related issues.<BR>
Disabled: SELinux is turned off.<BR>
You can view current status of SELinux mode from the command line using &#180;system-config-selinux&#180;, &#180;getenforce&#180; or &#180;sestatus&#180; commands.<BR>
# sestatus<BR>
If it is disabled, enable SELinux using the following command.
<BR><BR>
setenforce enforcing
<BR><BR>
It also can be managed from &#180;/etc/selinux/config&#180; file, where you can enable or disable it.<BR>
https://www.tecmint.com/linux-server-hardening-security-tips/. Bootparameter in /boot/grub/menu:lst: &quot;selinux=1&quot;
<BR><BR>
AppArmor or SELinux?, forum.ubuntuusers.de<BR>  
Why does Ubuntu not use SELinux, ... I see it so too.... I have no trust anymore. . Tom-L. Beitr&auml;ge form year 2007 ( five years <i>before</i> Snowden&#180;s publications...): 1181.<BR>
&#64;glasen<BR>
Many thanks, I am going to reed it having time next morning..<BR>
&#64;timmy11<BR>
Soso, NSA aso. Hmm, I would for myself wouldn&#180;t bother about ... I mean, ok, of it would be our government Bundesregierung... Bundes-trojan :lol:<BR>
No, but to be serious: Security against third parties may be higher, if institutes like NSA are involved, but I feel the shabby smell with it too.
<BR><BR>
timmy11<BR>
Maybe someone can convince us from the opposite.<BR>
<B>For me America means (... the governmental organizations): I like everything to know and to snoop upon.</B><BR>
Murdoc<BR>
Avatar von Murdoc<BR>
<B>I also see this....I simple do not have any trust anymore:(</B>
<BR><BR>
Tom L.: I mean having read, that SELinux is an official part of the kernel. Therefore I believe, that Kernel developer ( and more than only the same one) has studied the source code carefully.
<BR><BR>
glasen: Sorry, but I can not stand your paranoia.<BR>
Obviously NSA become a member to develope SELinux, but as Linux is open-source free software, it is impossible for NSA to keep any backdoors secretly open.<BR>
If there were one line code, that could not stand Peer-Review, SELinux would never be a part of the kernel-sources!
<BR><BR>
Murdoc: I believe this too, but they have studied everything, but there are also kernel-exploits :-/
<BR><BR>
If secret services would do this, intergrating backdoors within the kernel ..., then certainly not by a project like SELinux, but through other parts of the kernel.
<BR>
comm_a_nder: Hey, boys, think about it.
<BR><BR>
Mosurft: Generally I do not feel well connecting SELinux made by NSA, even for - I do believe - noone can study and analyze each part of the source-code. Anyoune does always not notice anything, otherwise there would be no lacks in security and even a secret service has got the most interest in getting and checking a PC with the click on the buttom, in order to check out PCs...<BR>
I&#180;d like to know, who runs SELinux on a computer with Ubuntu and how it functions! And if someone does not like SELinux, what about <B>Grsecurity</B>? Did anyone check it out?
<BR>
Greetings, Mo.
<BR><BR>
comm_a_nder: If i said it in the wrong way and you feel attacked in person, it makes me sorry.<BR>
Back to the theme: Especially the parts of software added by NSA, have been checked out well. But as I told you, there were surely much more effective ways for the boys from &quot;Crypto City&quot; to migrate code into kernel-source.
<BR><BR>
Murdoc. As we are going on paranoidal, I ask for the BIOS.<BR>
Now, as ASUS offers a Minimal Linux to browse, the question is posed, what the BIOS is all enabled to do?
<BR><BR>
Mosurft: If I do not trust the BIOS, then I better do not use any computer...! ;)
...<BR>
https://forum.ubuntuusers.de/topic/apparmor-oder-selinux
<BR><BR>
Introduced mainboard ITX-220 comes with in- and deactivable BIOS-LAN-Chip and Coretemp for the regulation of the temperature... Next point: SELinux. As our excurs shows, it is suspicously not needed. So we&#180;d prefer to deactivate it right within the boot-paramters. 
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Review Logs Regularly</B><BR>
Move logs in dedicated log server, this may prevents intruders to easily modify local logs. Below are the Common Linux default log files name and their usage:
<BR><BR>
/var/log/message - Where whole system logs or current activity logs are available.<BR>
/var/log/auth.log - Authentication logs.<BR>
/var/log/kern.log - Kernel logs.<BR>
/var/log/cron.log - Crond logs (cron job).<BR>
/var/log/maillog - Mail server logs.<BR>
/var/log/boot.log - System boot log.<BR>
/var/log/mysqld.log - MySQL database server log file.<BR>
/var/log/secure - Authentication log.<BR>
/var/log/utmp or /var/log/wtmp : Login records file.<BR>
/var/log/yum.log: Yum log files.<BR>
https://www.tecmint.com/linux-server-hardening-security-tips/
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Shared Memory</B> (shm und tmpfs, siehe unsere /etc/fstab im noch Folgenden), https://help.ubuntu.com/community/StricterDefaults<BR>
By default, /run/shm is mounted read/write, with permission to execute programs. In recent years, many security mailing lists have noted many exploits where /run/shm is used in an attack against a running service, such as httpd. Most of these exploits, however, rely on an insecure web application rather than a vulnerability in Apache or Ubuntu. There are a few reasons for it to be mounted read/write in specific configurations, such as real-time configuration of a Synaptics touchpad for laptops, but for servers and desktop installations there is no benefit to mounting /run/shm read/write. To change this setting, edit the /etc/fstab file to include the following line:
<BR><BR>
none     /run/shm     tmpfs     defaults,ro   0  0
<BR><BR>
resp. http://joshrendek.com/2013/01/securing-ubuntu/ :
<BR><BR>
A common exploit vector is going through shared memory (which can let you change the UID of running programs and other malicious actions). It can also be used as a place to drop files once an initial breakin has been made. An example of one such exploit is available here.<BR>
Open /etc/fstab/:
<BR><BR>
tmpfs     /dev/shm     tmpfs     defaults,ro     0     0
<BR><BR>
This will mount /run/shm in read-only mode. Note: MANY programs will not work if you make /run/shm read-only (e.g. Google Chrome).If you have a good reason to keep it writable, put this line in /etc/fstab instead:
<BR><BR>
none     /run/shm     tmpfs     rw,noexec,nosuid,nodev     0     0
<BR><BR>
This will mount /run/shm writable, but without permission to execute programs, without permission to change the UID of running programs, or to create block or character devices in the namespace.
<BR><BR>
The changes will take effect the next time you reboot, unless you remount /run/shm with the command sudo mount -o remount /run/shm.
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>SSH Settings</B>, https://help.ubuntu.com/community/StricterDefaults<BR>
While the SSH daemon is secure enough for most people, some may wish to further enhance their security by changing certain sshd settings. Some settings which could be changed to enhance security are given here. All changes, unless otherwise stated, are made in the /etc/ssh/sshd_config file. Lines with a pound sign (#) are commented and not read. To edit this file from a terminal:
<BR><BR>
sudoedit /etc/ssh/sshd_config
<BR><BR>
For a Gnome editor, press Alt+F2 and use:
<BR><BR>
gksudo gedit /etc/ssh/sshd_config
<BR><BR>
For a KDE editor, press Alt+F2 and use:
<BR><BR>
kdesu kate /etc/ssh/sshd_config
<BR><BR>
Please remember, after making any changes, sshd must be restarted, which can be done from the terminal with this command:
<BR><BR>
service ssh restart (CentOS: sh /etc/init.d/sshd restart)<BR>
..., https://help.ubuntu.com/community/StricterDefaults .
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Configuring bastille</B>, http://joshrendek.com/2013/01/securing-ubuntu/<BR>
The Bastille Hardening program &quot;locks down&quot; an operating system, proactively configuring the system for increased security and decreasing its susceptibility to compromise. Bastille can also assess a system&#180;s current state of hardening, granularly reporting on each of the security settings with which it works.
<BR><BR>
<font style="font-size: 9pt">File permissions module: Yes (suid)<BR>
Disable SUID for mount/umount: Yes<BR>
Disable SUID on ping: Yes<BR>
Disable clear-text r-protocols that use IP-based authentication? Yes
Enforce password aging? No (situation dependent, I have no users accessing my machines except me, and I only allow ssh keys)<BR>
Default umask: Yes<BR>
Umask: 077<BR>
Disable root login on tty 1-6: Yes<BR>
Password protect GRUB prompt: No (situation dependent, I&#180;m on a VPS and would like to get support in case I need it)<BR>
Password protect su mode: Yes<BR>
default-deny on tcp-wrappers and xinetd? No<BR>
Ensure telnet doesn&#180;t run? Yes<BR>
Ensure FTP does not run? Yes<BR>
display authorized use message? No (situation dependent, if you had other users, Yes)<BR>
Put limits on system resource usage? Yes<BR>
Restrict console access to group of users? Yes (then choose root)<BR>
Add additional logging? Yes<BR>
Setup remote logging, if you have a remote log host, I don&#180;t so I answered No<BR>
Setup process accounting? Yes<BR>
Disable acpid? Yes<BR>
Deactivate nfs + samba? Yes (situation dependent)<BR>
Stop sendmail from running in daemon mode? No (I have this firewalled off, so I&#180;m not concerned)<BR>
Deactivate apache? Yes<BR>
Disable printing? Yes<BR>
TMPDIR/TMP scripts? No (if a multi-user system, yes)<BR>
Packet filtering script? Yes<BR>
Finished? YES! &amp; reboot</font>
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Link the dns resolver nslookup to the anonymizing tor-resolve</B><BR>
We are going to write about Tor (The Onion Router) at the end of our excurs. If you already use Tor, secure up your system by linking nslookup with the DNS-anonymizing resolver tor-resolve:<BR>
make a copy of nslookup: cp -f /usr/bin/nslookup /usr/bin/nslookup-save<BR>
links nslookup with tor-resolve: ln -sf /usr/bin/tor-resolve /usr/bin/nslookup.<BR>
You can do the same for dns-resolving host and dig too.<BR>
Notice, that the output of those programs is not the same (but in all cases they do contain the IP for the domain requested).<BR>
For programs that do not work past this linking, enter the ip-domain-pairs in /etc/hosts and adjust /etc/nsswitch.conf. Read more about /etc/hosts at the end of our excurs.<BR>  
At last, think about setting ACL-rights upon these files, see our section for setfacl.
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">For our &quot;Universal-Linux&quot; (backported sytem) <B>an actual kernel and actual kernel-firmware</B> can be downloaded from PCLinuxOS, a backport of Fedora Core, ROSA, Mageia and Mandriva, http://ftp.pbone.net/mirror/www.pclinuxos.com/pclinuxos/apt/pclinuxos/64bit/RPMS.x86_64/ or https://ftp.nluug.nl/ftp/pub/os/Linux/distr/pclinuxos/pclinuxos/ or https://linux.palemoon.org and other URL. We strongly recommend LONGTERMED <B>kernel-5.4.110 (pclos)</B> with mkinitrd (pclos, rosa, mga2), nash (pclos, rosa, mga2), dracut (mga6: version 044, el6: version 004 (leads into manual LUKS-password request even in the case of existing password-key-file!, mdv2011: Version 008)), glibc (el8, pclos) and kernel-firmware (pclos) and kernel-firmware-extra (pclos) and Konqueror (el6) with the intergrated adbocker resp. actual Firefox (ESR, the backported company edition) from http://ftp.scientificlinux.org/linux/scientific/6.9/x86_64/updates/security/ or http://mirror.centos.org/centos/6/updates/x86_64/Packages/ with extensions named on this webside in the following.
<BR><BR>
After the installation of kernel-4.19 (pclos), lookout for the requirements and install missing ones like kmod (pclos): &quot;rpm -qi --requires kernel-4.19....&quot;.
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Deinstallation of programs (also see section &quot;Updating/Updates&quot;):</B> If sudo, rpcbind, portmapper, sshd SSH-Daemon, rsh, telnet, avahi-daemon or cups-browsed daemon of the CUPS-system is not needed for example, it is possible to deactivate or deinstall them: &quot;dpkg ...&quot; , &quot;rpm -e [nodeps]&quot; source: https://wiki.kairaven.de/open/os/linux/tuxsectune
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Quota</B><BR>
Quota limits the memory consumption for a single user and/or group, so that an &quot;overflow&quot; of a volume resp. partition is prevented. For quota the kernal must be configured. If CONFIG_QFMT_V2 is set as modul, kernel modul quota_v2.ko is added to /etc/modules:
<BR><BR>
sudo echo quota_v2 &gt;&gt, /etc/modules
<BR><BR>
For quota following packages have to be installed:
<BR><BR>
sudo aptitude install quota quotatool
<BR><BR>
If  there is not any quota upon NFS-mounted file systems resp. RPC-quota-server, the service RPC-Remote-Quota-Server can be deactivated:
<BR><BR>
sudo systemctl disable quotarpc.service # sh /etc/init.d/quota... stop # and disable
<BR><BR>
In /etc/fstab the mount-options of the /fs file system are added with the options for the usage of journaling quota:
<BR><BR>
/etc/fstab
<BR><BR>
    /fs  /mountpoint  ext4  optionen,usrjquota=aquota.usr/grpjquota=aquota.group,jqfmt=vfsv0|1
<BR><BR>
Use usrjquota for quota of user and/or grpjquota for groups. Volumes with a size of 4TB use quota-format vfsv1.
<BR><BR>
Finally restart the system, if the file system can not be mounted by the following command:
<BR><BR>
sudo mount -o remount /mountpoint
<BR><BR>
More details and source: https://wiki.kairaven.de/open/os/linux/tuxsectune
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Kernel-configuration</B><BR>
Deactivate as much as possible, that means all modules, that are not needed. The preconfiguration for single user is already set for the everyday life. This might differ from special requirements and development and a backup-kernel should be installed parallely too, if the configuration and the boot fails. 
<BR><BR>
More details and source: https://wiki.kairaven.de/open/os/linux/tuxsectune<BR>
We are describing, how to configure and compile the kernel-source in our section for updates. 
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Blocking of modules</B><BR>
https://wiki.kairaven.de/open/os/linux/tuxsectune (resp. by &quot;blacklist modul-name&quot; within /etc/modules.d).
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Dienste mit systemd</B><BR>
Removal and deactivation<BR>
Deactive all services, that are  not needed. Either deinstall complete packages or, if a deinstallation is not wanted, use systemctl (alternatively: ntsysv, chkconfig or MCC#system-services (mdv2010) for deactivation).
<BR><BR>
More about security-settings for services by systemd and source: https://wiki.kairaven.de/open/os/linux/tuxsectune .
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>at &amp; cron</B><BR>
Resrict the users, that are enable to create and modify at (batch) and cron jobs, enable them within /etc/at.allow and /etc/cron.allow by entering them with their login-name line-by-line (only for users, that are enabled).
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Hardend compilation</B><BR>
Flags, that can be set for the configure-Script.<BR>
<BR><BR>
Executable
<BR><BR>
    &#180;CFLAGS= -g -O2 -fPIE -fstack-protector-strong -Wformat -Wformat-security -Werror=format-security&#180;<BR>
    &#180;CPPFLAGS= -D_FORTIFY_SOURCE=2&#180;<BR>
    &#180;CXXFLAGS= -g -O2 -fPIE -fstack-protector-strong -Wformat -Wformat-security -Werror=format-security&#180;<BR>
    &#180;LDFLAGS= -fPIE -pie -Wl,-z,relro -Wl,-z,now&#180;
<BR><BR>
Shared Library
<BR><BR>
    &#180;CFLAGS= -g -O2 -fpic -fstack-protector-strong -Wformat -Wformat-security -Werror=format-security&#180;<BR>
    &#180;CPPFLAGS= -D_FORTIFY_SOURCE=2&#180;<BR>
    &#180;CXXFLAGS= -g -O2 -fpic -fstack-protector-strong -Wformat -Wformat-security -Werror=format-security&#180;<BR>
    &#180;LDFLAGS= -fpic -Wl,-z,relro -Wl,-z,now&#180;
<BR><BR>
If option &quot;-fpic&quot; does not work, use &quot;-fPIC&quot;.
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Evtl. deinstall ( rpm -e packagename or rpm -e --nodeps packagename )</B><BR>
rpcbind (el6, mdv2010.2), sudo (el6, mdv2010.2), portmap (el6, mdv2010.2), dayplanner, mmc-agent (mdv2010.2), tracker (mdv2010), codeina (mdv2010), xguest (mdv2010), wu-ftpd (mdv2010), anonftp (mdv), mdkonline (mdv2010), f-spot (does not work on the base of updated mono (rosa2014.1), abrt (el6), funguloids (mdv2010.2), banshee (rosa,mdv) and amarok (rosa,mdv): unavailable for el6, both ones do not work, qmmp (el6, mdv) does not work, lxde (mdv2010, lxpanel tries to get inpredictable root-access). 
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Start only the processes needed. Use net_applet from NetworkManager and not nm-applet. There might be an error in the skript for NetworkManager. Replace everything except last line in start() with &quot;/usr/bin/NetworkManager --login-level=INFO&quot;.</B>
<BR><BR>
<B>Commercial modules: Linux and the NSA</B><BR>
tgruene,  16.10.2013<BR>   
Bei dem letzten Newslink &uuml;ber Oracles Versuch, dem DOD den Vorteil kommerzieller Software zu erkl&auml;eren, kam mir der Gedanke, dass auf einem.typischen Linuxrechner eine ganze Reihe Module laufen, fuer die kein Quellcode zur Verfuegung steht (die daf&uuml;r von US-amerikanischen Firmen zur Verf&uuml;gung gestellt werden und somit vermutlich auch gesetzestreue (aka NSA-freundliche) Hintert&uuml;ren enthalten), seien es Nvidia/ATI-Treiber, Virtualbox oder unter Debian vermutlich fast der gesamte Inhalt von firmware-linux-nonfree.<BR>
Mich interessiert, wie gut der Kernel und die Module voneinander abgeschottet sind - wie leicht ist es, solch einem Modul z.B. einen Keylogger einzubauen, der meine Passw&ouml;rter beim Tippen abf&auml;ngt und &uuml;bers Internet irgendwohin schickt? Dass die NSA meine Emails liest, ist unversch&auml;mt, st&ouml;rt mich aber an sich nicht weiter, sonst w&uuml;rde ich ja keine Emails an Leute schreiben, deren Schl&uuml;ssel ich nicht kenne, doch meinen GPG-Schl&uuml;ssel und die Passw&ouml;rter abzuh&ouml;ren - dagegen habe ich ganz ordentlich etwas.
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">Terminal -&gt; lsmod<BR>
<B>/etc/modprobe.d/blacklist*</B><BR>
<font style="font-size: 9pt" color="green">blacklist mei<BR>
blacklist it87 # disabled for Mainboard ASUS ITX-220<BR>
blacklist i2c_dev # ITX-220<BR>
blacklist coretemp # ITX-220<BR>
blacklist snd-usb-audio<BR>
blacklist snd_pcm_oss<BR>
blacklist snd_mixer_oss<BR>
blacklist snd_seq_oss<BR>
blacklist pata_acpi<BR>
blacklist rivatv<BR>
blacklist i82875p_edac<BR>
# do not use &quot;Boot Protocol&quot; drivers, we prefer usbhid<BR>
# and they cause problems when loaded together with usbhid (#37726, #40861)<BR>
blacklist usbkbd<BR>
blacklist usbmouse<BR>
# disable PC speaker by default<BR>
# pcspkr is the standard driver, while snd-pcsp is the ALSA driver<BR>
blacklist pcspkr<BR>
blacklist snd-pcsp<BR>
blacklist pcspkr<BR>
blacklist snd-pcsp<BR>
blacklist vhost<BR>
blacklist vhost_net<BR>
blacklist tpm_infineon<BR>
blacklist tmp_tis<BR>
blacklist tmp_tis_core<BR>
blacklist i82875p_edac<BR>
blacklist pcspkr<BR>
blacklist snd-pcsp<BR>
blacklist rivatv<BR>
blacklist i82875p_edac<BR>
blacklist pcspkr<BR>
blacklist it87<BR>
blacklist i2c_dev<BR>
blacklist coretemp<BR>
blacklist vhost_net<BR>
blacklist tpm_infineon<BR>
blacklist tmp_tis<BR>
blacklist tmp_tis_core<BR>
blacklist i82875p_edac<BR>
blacklist pcspkr<BR>
blacklist snd-pcsp<BR>
blacklist rivatv<BR>
blacklist i82875p_edac<BR>
blacklist pcspkr<BR>
# watchdog drivers<BR>
blacklist i8xx_tco<BR>
# framebuffer drivers<BR>
blacklist aty128fb<BR>
blacklist atyfb<BR>
blacklist radeonfb<BR>
blacklist i810fb<BR>
blacklist cirrusfb<BR>
blacklist intelfb<BR>
blacklist kyrofb<BR>
blacklist i2c-matroxfb<BR>
blacklist hgafb<BR>
blacklist nvidiafb<BR>
blacklist rivafb<BR>
blacklist savagefb<BR>
blacklist sstfb<BR>
blacklist neofb<BR>
blacklist tridentfb<BR>
blacklist tdfxfb<BR>
blacklist virgefb<BR>
blacklist vga16fb<BR>
blacklist matroxfb_base<BR>
# ISDN - see bugs 154799, 159068<BR>
blacklist hisax<BR>
blacklist hisax_fcpcipnp</font>
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left"><B>Partition-check during <i>each</i> system boot)</B><BR>
This is described later on, but it might be such important, to tell it alrady at this place.<BR>
We assume, that the partitions got already encrypted with LUKS/dm-crypt (we are describing later on, how this can be made, if not). But the check will work upon unencrypted ones too. To be careful, we are going to check out partitions with file systems like ext4 each system boot, especially thinking of all the updating with rpm-packages in future.<BR>
<BR><BR> 
<center><TABLE BORDER="1" bgcolor="#15fb9b" summary="commands"><TR><TD><font color="black">tune2fs -c 1 /dev/mapper/cryptedhomepartition</font></TD></TR></TABLE></CENTER>
<BR><BR>
resp.
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left">
<center><TABLE BORDER="1" bgcolor="#15fb9b" summary="commands"><TR><TD><font color="black">reiserfstune -m 1 /dev/mapper/cryptedroot_resp_home_resp_bootpartition</font></TD></TR></TABLE></CENTER>
<BR><BR>
resp.
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left">
<center><TABLE BORDER="1" bgcolor="#15fb9b" summary="commands"><TR><TD><font color="black">tune2fs -d 7 /dev/mapper/cryptedroot_resp_home_resp_bootpartition</font></TD></TR></TABLE></CENTER>
<BR><BR>
For unencrypted and not internal kernel-partitions replace the container-file  &quot;/dev/mapper/cryptedhomepartiton&quot; with a device file like /dev/sda1.
<BR><BR>
Also activate in the device configuration file /etc/fstab the check each boot. Do this line (partition) by line (partition) more or less regarding &quot;priorities&uot; of the check, by setting a positive interger not equal to zero behind the number (zero) for the (deactivated) dump at the end of the line: &quot;0 1&quot; for the root-partition, &quot;0 1&quot; or &quot;0 2&quot; for the home-partition and so on.<BR>
An example of the content of /etc/fstab as a whole is given further below.
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Apache-Webserver (httpd.conf)</B> (analogous: LAN/Samba (samba.conf, database server/MySQL (my.cnf and mysld.conf) and other server, print-server (CUPS) see end of this website )<BR>
Now it is the turn for the webserver, almost Apache httpd 1.3 or 2.0. Basic functions are enriched by many loadable modules.<BR>
To see, which modules are really needed, have a look into /etc/apache/httpd.conf (CentOS 6 and CentOS 7: /etc/httpd/httpd.conf):
<BR><BR>
LoadModule autoindex_module /usr/lib/apache/1.3/mod_autoindex.so <BR>
LoadModule dir_module /usr/lib/apache/1.3/mod_dir.so <BR>
LoadModule cgi_module /usr/lib/apache/1.3/mod_cgi.so <BR>
LoadModule userdir_module /usr/lib/apache/1.3/mod_userdir.so<BR> 
LoadModule proxy_module /usr/lib/apache/1.3/libproxy.so 
<BR><BR>
Superfluos modules can be commented in by &quot;#&quot; plus blank at the very beginning of each line. Apache will work faster and will consumpt less memory the less modules are needed.. 
<BR><BR>
Only those modules should be loaded, that are really needed. The kind of server determines, which ones. Nevertheless there are modules, a standard webserver does not need: <BR>
* lib_status (presents a server-internal status) <BR>
* libproxy (an enormous security risk, as the webserver realizes a proxy for the accesses of other server) <BR>
* mod_cgi (to start so-called cgi-scripts. Such scripts are rarely used today as they are one more security risk)<BR>
* mod_userdir (generates a web-directory for each user) <BR>
In Debian, Apache 2.0 uses the file /etc/apache2/apache2.conf for configuration. All modules symbolically linked in /etc/apache2/mods-enabled are loaded by default. To deactivate such modules, the link has to be deleted.<BR>
After the config-files were changed,  
<BR><BR>
apache -t
<BR><BR>
shows, if the configuration-syntax still is OK. 
<BR><BR>
 /etc/init.d/apache restart<BR>
oder <BR>
/etc/init.d/apache2 restart # C6 (el6): sh /etc/init.d/httpd restart
<BR><BR>
restarts the server, therewith the changes can take into effect.
<BR><BR> 
Notice, that SuSE makes it the other way. Apache-modules are loaded within the file /etc/sysconfig/apache2. Look out in this file for the line with &quot;APACHE_MODULES&quot; and delete the entries not needed. After this,   
<BR><BR>
SuSEconfig<BR> 
has to be started out of the shell. Restart Apache by<BR>
rcapache2 restart 
<BR><BR>
Get more infos about the task for each module, have a look at
<BR><BR>
http://httpd.apache.org/docs/1.3/mod/index-bytype.html und<BR>
http://httpd.apache.org/docs/2.0/mod/<BR>
More reports<BR>
Apache: Howto stop unwanted referer, https://www.strassenprogrammierer.de/apache-unerwuenschte-referer-stoppen_tipp_441.html
<BR>
source. https://www.strassenprogrammierer.de/webserver-absichern-hacker_tipp_479.html
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Secure Apache/PHP/Nginx server</B><BR>
Edit httpd.conf file (CentOS: /etc/httpd/conf/httpd.conf) and add the following:
<BR><BR>
ServerTokens Prod<BR>
ServerSignature Off<BR>
TraceEnable Off<BR>
Options all -Indexes<BR>
Header always unset X-Powered-By
<BR><BR>
Restart the httpd/apache2 server on Linux<BR>
You must install and enable mod_security on RHEL/CentOS server. It is recommended that you edit php.ini and secure it too.<BR>
https://www.cyberciti.biz/tips/linux-security.html
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">DDoS-Schutzdienst:<BR>
Der DDoS-Schutzdienst ist in der Lage, selbst die komplexesten DDoS-Angriffe abzuwehren.<BR>
https://en.wikipedia.org/wiki/Denial-of-service_attack#Distributed_attack<BR>
https://www.cloudflare.com/learning/ddos/what-is-a-ddos-attack/<BR>
https://us.norton.com/internetsecurity-emerging-threats-what-is-a-ddos-attack-30sectech-by-norton.html<BR>
https://www.digitalattackmap.com/understanding-ddos/
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">Lastverteilung:<BR>
Der Lastenausgleich geht h&auml;ufig mit Ausfallsicherheitsmechanismen einher: Indem Sie einen Cluster mit der entsprechenden Kapazit&auml;t aufbauen und die Anforderungen auf einzelne Systeme verteilen, k&ouml;nnen Sie die Ausfallsicherheit erh&ouml;hen Ausfallsicherheit, wenn der Ausfall eines Systems erkannt wird und die Anforderungen automatisch an ein anderes System gesendet werden.<BR>
https://de.wikipedia.org/wiki/Lastverteilung_(Informatik)<BR>
https://www.nginx.com/resources/glossary/load-balancing/
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">HMAC authentication<BR>
HMAC stands for keyed-hash message authentication code. A message authentication code protects against the modification of transmitted data by an attacker, who can read the data in real time. TLS use hash values (hence the H in HMAC) out of the numerous possibilities for the reliable authentication of messages.<BR>
https://en.wikipedia.org/wiki/HMAC
<BR><BR>
HMAC Authentication in Web API - Dot Net Tutorials<BR>
Understanding the Keys used in HMAC Authentication. Uses of HMAC Authentication in Web API. How does the HMAC Authentication work?<BR>
https://dotnettutorials.net/lesson/hmac-authentication-web-api/
<BR><BR>
What is HMAC authentication and how does it make VPN safer?<BR>
HMAC stands for hashed message authentication code and is an important factor in VPN security. Learn why strong HMAC auth matters for VPN security.<BR>
https://protonvpn.com/blog/hmac-authentication/
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">Station-to-Station (STS) protocol, Cipher Block Chaining:<BR>
CBC stands for Cipher Block Chaining, which is every message depending on the previous passes. So can yourself short interruptions of the channel can be quickly noticed. Diffie-Hellman key exchange:<BR> https://en.wikipedia.org/wiki/Diffie-Hellman_key_exchange A symmetric encryption scheme is used, the key of which is the negotiation of Diffie-Hellman key exchanges with elliptic curves. The server and the app use intelligent math to negotiate and verify the secret key, which is then used to encrypt the data for the entire session. Station-to-Station (STS) protocol: https://en.wikipedia.org/wiki/Station-to-Station_protocol In public-key cryptography, the Station-to-Station (STS) protocol is a cryptographic key agreement scheme. The protocol is based on classic Diffie-Hellman, and provides mutual key and entity authentication. Unlike the classic Diffie-Hellman, which is not secure against a man-in-the-middle attack, this protocol assumes that the partie<img src="images/haekchen.png" ALT="OK" align="left" border="0">s have signature keys, which are used to sign messages, thereby providing security against man-in-the-middle attacks. In addition to protecting the established key from an attacker, the STS protocol uses no timestamps and provides perfect forward secrecy. It also entails two-way explicit key confirmation, making it an authenticated key agreement with key confirmation (AKC) protocol.<BR>
https://en.wikipedia.org/wiki/Block_cipher_mode_of_operation#CBC<BR>
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">Pretty Good Privacy<BR>
PGP encryption uses a serial combination of hashing, data compression, symmetric-key cryptography, and finally public-key cryptography; each step uses one of several supported algorithms. Each public key is bound to a username or an e-mail address. The first version of this system was generally known as a web of trust to contrast with the X.509 system, which uses a hierarchical approach based on certificate authority and which was added
to PGP implementations later. Current versions of PGP encryption include both options through an automated key management server.<BR>
https://en.wikipedia.org/wiki/Pretty_Good_Privacy
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">Perfect Forward Secrecy<BR>
With Perfect Forward Secrecy, even if a dedicated opponent is somehow able to attack the computer or server during a session, they will not be able to decrypt traffic from past sessions. The provider uses namely with each connection a new secret key. Even if you remain connected to the Server for a long period of time, the provider automatically changes the key every 60 minutes. This key renewal process every 60 minutes guarantees &quot;Forward Secrecy&quot;. So if an attacker succeeds in compromising the key, in the worst case scenario, he could track the data for up to 60 minutes. Then everything is secret again.<BR>
https://en.wikipedia.org/wiki/Forward_secrecy
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">Shadowsocks SOCKS5 proxy (all servers) Shadowsocks Proxy can be used by the provider through the application (Mac OS X, Windows, Linux, iOS, Android, Windows 10 Mobile). In addition, there is an advantage that &quot;shadow socks&quot; can not even be blocked in highly restrictive networks.<BR>
https://shadowsocks.org/en/index.html
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">Smart DNS Proxy (all servers)<BR>
There are currently two common ways to circumvent geo-blocks of foreign video-on-demand services such as Hulu, Netflix or Vudu. The first way is to use SmartDNS services. The term SmartDNS hides on innovative technology that has been specifically designed to bypass the geo-blocking barrier. To configure the SmartDNS service, there is only a minimal change to the TCP/IP properties of the network connection. Then, the user can freely use many suspended streaming services regardless of their current whereabouts.<BR>
http://www.unblock.ch/smart-dns-anbieter/
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">DNS-Leak:<BR>
Eigene DNS-Server ohne Festplatten (RAM-Disk). Zus&auml;tzlich werden OpenDNS-Server (IPv6) verwendet (Auswahlm&ouml;glichkeit in den Einstellungen). Der Dienst sch&uuml;tzt zuverl&auml;ssig vor dem bekannten DNS-Leck.<BR>
https://www.hongkiat.com/blog/creating-ram-drives/<BR>
https://www.tomshardware.com/news/what-we-know-ddr5-ram,39079.html<BR>
https://www.opendns.com/about/innovations/ipv6/
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">IP-Leak:<BR>
Eine eigene Software verhindert zuverl&auml;ssig Angriffe bekannter DNS-Leak-Methoden.
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">WebRTC-Leak:<BR>
Der Service sch&uuml;tzt zuverl&auml;ssig vor dem bekannten WebRTC-Leak-Problem.
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">Speicherschutz-Funktion (Schutz vor Serverausf&auml;llen):<BR>
Diese Funktion ist in der Lage, den verf&uuml;gbaren Arbeitsspeicher so aufzuteilen und laufende Programme so voneinander zu trennen, dass ein Programmierfehler oder Absturz eines einzelnen Programms nicht die Stabilit&auml;t anderer Programme oder des Gesamtsystems beeintr&auml;chtigt (Speicherschutz-Mechanismus).<BR>
Serverausfall (Schutzm&ouml;glichkeiten):<BR>
Unterspannungsschutz (UVP)<BR>
&Uuml;berspannungsschutz (OVP)<BR>
Kurzschlusssicherung (SCP)<BR>
&Uuml;berlastschutz (OPP)<BR>
&Uuml;berstromschutz (OCP)<BR>
&Uuml;berhitzungsschutz (OTP)<BR>
Japanische 105°C Kondensatoren (Lebensdauer vom Netzteil)<BR>
Brandmelder (im Serverraum eingebaut)<BR>
Diese Schutzfunktionen (Netzteil) k&ouml;nnen die meisten Serverausf&auml;lle verhindern.
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Login methods, Two-Factor-Authentification (TOTP)</B><BR>
Two factor authentication can be implemented for SSH access or other application login, it will improve login security by adding a second factor of authentication, that is the password is typically known as something you know, while the second factor may be a physical security token or mobile device which acts as something you have. The combination of something you know and something you have ensures that you are more likely who you say you are.
<BR><BR>
There are custom applications available for this such as Duo Securityand Google Authenticator as well as many others. These typically involve installing an application on a smart phone and then entering the generated code alongside your username and password when you authenticate.<BR>
Google Authenticator can be used for many other applications than just SSH, such as for WordPress login with third party plugin support.
<BR>
https://www.rootusers.com/23-hardening-tips-to-secure-your-linux-server/<BR>
4096 bit encryption/Eliptic-cuves-cryptography/<BR>
Two-Factor-Authentfication/connection (SSL/TLS encryption)/full IPv6<BR>
Support/HMAC-Authentifizierung/Cipher Block Chaining/Diffie-Hellman-Schl&uuml;sselaustausch/STS-Protokoll (Station-to-Station)/Pretty Good Privacy/Perfect Forward<BR>
Secrecy/encryption tool (Cloud Storage/Backup)/Failure Backup-solution/NAT-Firewall/<BR>
DDoS-protection/Lastverteilung/DNS-Leak/IP Leak/WebRTC Leak/WebRTC Leak/<BR>
Windows Login Leak/Arttifical Intelligence (NeuroRouting&trade;)/Zero-Knowledge-Beweis/<BR>
Fiat-Shamir-Protokoll/Schnorr-Identification/SecureCore-function (security kernel)/<BR>
4096 bit encryption:<BR>
https://www.pcwelt.de/ratgeber/Verschluesselung_-_Was_ist_noch_unknackbar_-Sicherheits-Check-8845011.html<BR>
https://www.heise.de/security/artikel/Kryptographie-in-der-IT-Empfehlungen-zu-Verschluesselung-und-Verfahren-3221002.html?seite=all<BR>
https://de.wikipedia.org/wiki/Elliptic_Curve_Cryptography<BR>
https://www.heise.de/select/ix/2017/3/1487529933065685<BR>
https://www.computerweekly.com/de/definition/Elliptische-Kurven-Kryptografie-Elliptic-Curve-Cryptography-ECC<BR>
https://www.globalsign.com/de-de/blog/ecc-101/<BR>
https://www.ssl247.de/certificats-ssl/rsa-dsa-ecc<BR>
Two-Factor-Authetification(TOTP):<BR>
https://de.wikipedia.org/wiki/Zwei-Faktor-Authentisierung<BR>
https://www.pcwelt.de/ratgeber/Wichtige_Dienste_per_Zwei-Faktor-Authentifizierung_schuetzen-Sicherheit-8679969.html<BR>
https://www.security-insider.de/flexiblere-zwei-faktor-authentifizierung-an-vpns-a-700259/<BR>
https://www.security-insider.de/remote-access-vpn-mit-zwei-faktor-authentifizierung-a-389000/<BR>
http://www.itseccity.de/produkte-services/it-security/vpn-loesungen/ncp-engineering090315.html<BR>
Authenticator-App:<BR>
a) FreeOTP Authenticator<BR>
b) Authy<BR>
c) Microsoft Authenticator<BR>
d) LastPass Authenticator<BR>
e) Google Authenticator<BR>
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Kill hack-attempts against the Secure Shell</B><BR>
In order to prevent hundrets of sshd-tasks starting at the same by a hacking attempt, add the line
<BR><BR>
MaxStartups 3:30:10
<BR><BR>
into the configuratio file /etc/ssh/sshd_config. This restriction is effective but complicated. The values in the example mean, that  2 (= 1. value minus 1) unauthenticated (and therefore in the Login-state assembled) sshd-connections are always allowed.<BR>
A third connection (= 1. value) is blocked by a probability of 30% (second value).<BR>
The probaliity of ending a connection is increasing linear, until up from 10 opened (built-up) connections  (third value) each attempt to build up a connection is blocked at all at the rate of 100 in percent.
<BR><BR>
Notice, that useres already logged in do not refer to these values! The values in the example from above should suffer the need for each small and middle-sized server. If there are plenty of SSH-user, higher values might be recommended, for example: 
<BR><BR>
MaxStartups 10:30:50 6
<BR><BR>
Source: https://www.strassenprogrammierer.de/sicherheit-ssh-hacker_tipp_480.html
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Forbid root-access for SSH</B><BR>
Change the ssh-configuration:
<BR><BR>
nano /etc/ssh/sshd_config
<BR><BR>
and set
<BR><BR>
PermitRootLogin no
<BR><BR>
And to make it most secure, we add the following lines:
<BR><BR>
# Only permit user admin.<BR> 
AllowUsers admin<BR>
# Generally block root or user of group root:<BR>
DenyUsers root<BR>
DenyGroups root
<BR><BR>
This lines can be added at the beginning of the file. Enhance the entry AllowUser, if further on more user are permitted for the SSH-login. New user are separated by a blank and not colon,. for example:
<BR><BR>
AllowUsers admin user1 user2 user3
Now the ssh-daemon gets started:
<BR><BR>
service ssh restart
<BR><BR>
Debian:
<BR><BR>
/etc/init.d/ssh reload
<BR><BR>
CentOS: sh /etc/init.d/sshd restart
<BR><BR>
Now we open a new session and try to login as root. By using the correct password, we get the message:<BR>
Access denied<BR>
Quelle: https://www.rechenkraft.net/wiki/Root_Server_absichern_(Ubuntu_14.04)<BR>
https://linux-scout.de/sicherheit/debian-server-absichern-so-machen-sie-es-richtig/
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Secure Linux Server</B><BR>
From Qloc Wiki<BR>
Here you find significant basics to secure a Debian/Ubuntu System. Except the tips listed here there are a lot of security precautions to make attacks more difficult.<BR>
Generally for all public systems essential services should only be accessible from the outside. Unused services like webserver or MySQL Server should eiteher be inaccessible with the help of iptables-rules or be deactivated.<BR>
Summary
<BR><BR>
    1 Secure keywords (passwords)<BR>
    2 SSH Port: secure up by change<BR>
    3 Creating SSH-keys<BR>
    4 Opening of required ports only<BR>
    5 Prevention of Brute Force Attacks<BR>
    6 Installing security updates
<BR><BR>
https://wiki.qloc.de/index.php/Absichern_eines_Linux_Servers
<BR><BR>
Right here we&#180;d like to mention the <B>server configuration files</B> for many more security settings (like access/login, ACL-access-rights, log, bandwidth and server-ports (now &quot;client&quot;-ports) to open). Also search for adequate modules resp. securing server-extensions.
<BR><BR>
- Apache: mod_evasive against DDoS, mod_cband as traffic-Cop<BR>
- Fail2Ban for the https-vHosts- resp. htaccess authentification<BR>
- 24/7 monitoring with SMS alerting through an SMS Gateway via monit<BR>
- encrypted backups in two different computer centers<BR>
- instead of unencrypted ftp: SFTP. Transfer gets encrypted through sshd.<BR>
Configure an ftp-server working with ssl-encryption, it es similar to POP3 and IMAP. Then the transfers get secure, noone can read data.<BR>
Forbid anonymous accounts and run the ftp server in a chroot environment. This keeps away most annoynances.<BR>
Use ssh instead of ftpd just relying on ssh too.<BR>
Normalerweise ist das Verbinden mit einem FTP-Server mit SSL nicht schwieriger als mit einem ohne.<BR>
Just configure the ftp-client for the SSL-ecnryption and he will connect. The everyting works like connecting with a ftp-server without SSL. One will be just asked, if the certificate is accespted.<BR>
SSH use port 22. It is possible to upload files too, but the user once logged in has the possibility to access the system- except the account is chrooted.<BR>
...<BR>
https://serversupportforum.de/forum/security/28079-abschottung-wie-geht-es-nun-weiter-2.html
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">Memory-protection-function (protection against server-breakdowns):<BR>
This function is be abled to separate the RAM into areas and distinguish processes the way, that programmers or breakdowns do not affect the stability of other processes or impairs the whole system (RAM-protection).<BR>
Server-breakdown-protection:<BR>
Low-Voltage-protection (UVP)<BR>
Overvoltage-protection (OVP)<BR>
Short circuit protection: (SCP)<BR>
Overload-protection (OPP)<BR>
Over current stream protection (OCP)<BR>
Over heat protection (OTP)<BR>
Japanese 105 degree condensators (lifetime of the netadapter)<BR>
Fire detectors (server room)<BR>
<BR><BR>
<font color="red"><B>Chroot ( Befehl chroot ): is part of commands resp. communication-protocols like mount, ssh, stfp and effects one of the most serious hard threats! Help is given by sandboxes and/or/including the locking of the shells of the user (unfortunately a sandbox only, if a program works upon sandboxes, for example tor-browser does not (but migh have its own one). We are going to talk about this problem!</B></font>
<BR><BR>
<B>Chroot and Chroot-Jail (Chroot-Enviroment, Chroot-Sandbox)</B><BR>
https://wiki.debian.org/chroot<BR>
Step by step: https://www.linuxwiki.de/chroot
<BR><BR>
<B>Chroot and Chroot-Jail</B>, debian.org, wikipedia.org<BR>
A chroot on Unix operating systems is an operation, that changes the apparent root directory for the current running process and its children. A program that is run in such a modified environment cannot name (and therefore normally cannot access) files outside the designated directory tree. The term &quot;chroot&quot; may refer to the chroot system call or the chroot wrapper program. The modified environment is called a chroot jail.<BR>
https://wiki.debian.org/chroot<BR>
https://en.wikipedia.org/wiki/Chroot
<BR><BR>
<B>Linux - Keeping users inside their home directory</B> - Super User<BR>
If you use chroot like this, everything the user needs (executables, libraries, etc.) has to be within the chrooted directory. I&#180;ve seen ftp-servers set up that way, with static executables copied into a bin directory.<BR>
https://superuser.com/questions/396282/keeping-users-inside-their-home-directory
<BR><BR>
<B>How to configure ProFTPD to chroot users to /home directory or any ...</B><BR>
If you&#180;re using ProFTPD user on a Linux server, you most certainly have wondered, how you can configure the FTP server to chroot (or jail) it&#180;s users to a particular ...<BR>
https://www.pc-freak.net/blog/how-to-configure-proftpd-to-chroot-users-to-home-directory-or-any-other-selected-directory-2
<BR><BR>
Furthermore past the configuration the server can run in a lower, but even more safer runlevel like <B>runlevel 3</B> (command: &quot;init 3&quot;) than common runlevel 5 or 6. mgetty resp. mingetty: terminal-switch ( ALT + CTRL + F1 up to F7), server configuration file (if it is possible there), systemd (sysctl) or chkconfig (to set the runlevel for the server during system boot)
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Coreboot - flashing the BIOS: Manufacturer BIOS-replacement by the Linux-System</B>, https://www.kuketz-blog.de/sicheres-desktop-system-linux-haerten-teil1/<BR>
&quot;System security already defines upon the hardware-level. Even today it might be difficult to find out WLAN-chipsets open source driver are provided. Exceptions like for AR9170 chipset are provided, same for the BIOS.<BR> Idally Coreboot can replace the actual BIOS for a open-source, free BIOS. Otherwise hidden backdoors are risked usable by secret services. <BR>
We can be only really &quot;secure&quot;, if open-source is used by hard- and software. [...]. <BR>
Therefore I am urged for the project &quot;hardened Linux&quot; to make an exception and like to repeat, that this project does not protect against directed secret services.<BR>
I...] As I wrote with the first article, a secure operating system can only be obtained using Linux resp. Unix.&quot;<BR> 
https://www.coreboot.org/Supported_Motherboards # u.a.<BR>
Many BIOS-variants are associated with software failures. Getting rid of them often implies updates from manufacturer. Beneath these unintended restrictions basic approaches exist to implement more functions in proprietary firmware (BIOS resp. UEFI) in future, that make afraid of more conscious restrictions of functionality.<BR>
Quelle: https://www.kuketz-blog.de/sicheres-desktop-system-linux-haerten-teil1/<BR>
https://www.kuketz-blog.de/sicheres-desktop-system-linux-haerten-teil2/<BR>
https://de.wikipedia.org/wiki/Coreboot<BR>
https://www.golem.de/0912/72132.html
<BR>
With Coreboot the system-startup-time can also be declined.
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Copy the Bios-flashing file (.ROM) from manufacturer-DVD into the boot-partition too, in order to get loaded after pressing the function-key or the Bios-setup to flash, if required!</B>
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B><u>Shorten the boot-time for your Linux rapidly</u></B>: For grub, exchange the value for the automized election to five or three seconds only.<BR>
Initscripts: use systemd or care for a short list through chkconfig by deleting as many scripts out of the list you can find in /etc/init.d as possible, therefore use chkconfig --del. Also repair listed loop-errors of such scripts in that way warned agains during the system-boot.<BR>
If you put order into the list of init-scripts, Linux like C6 (CentOS 6) will boot in less than one minute (upon Intel Celeron in less than 20 seconds) even faster than Debian!<BR>   
Of course more boot time for the typing in of the password for the decryption of the LUKS-encrypted root-partition, the partition-checks and for the boot (startup) of the Desktop Environment at the end of the boot has still to be considered (added)!
<BR><BR>
Disable any network-connection-build-up, until the system got booted!
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>hal resp. haldaemon</B> extends the boot-startup-time for C6 (Centos 6) resp. &quot;previous&quot; mdv (2010-2012) until the KDE-login (kdm) without regarding the LUKS-passwort-login and harddisc-check by fsck (we thought of each boot) serious hard from around 20 seconds up to more than one minute ! hal resp.  hald (haldaemon) might work faster by creating the file haldaemon within /etc/sysconfig with the follwoing include:
<BR><BR>
--child-timeout=15 # Begrenzung der Kindprozesse
--daemon=no
<BR><BR>
In /etc/dbus-1/system.d/hal.conf forbid some up to now allowed methods and devices, eventually like LightSensor and WakeOnLan, and in another subdirectorys haldaemon referring files like *dell-computer* eventually can just be deleted (removed).. 
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Konfiguration der Netzwerkschnittstelle</B>
/etc/udev/rules.d/70-persistent-net.rules for mainboard ASUS ITX-220
<BR><BR>
# This file was automatically generated by the /lib/udev/write_net_rules<BR>
# program, run by the persistent-net-generator.rules rules file.<BR>
#<BR>
# You can modify it, as long as you keep each rule on a single<BR>
# line, and change only the value of the NAME= key.<BR>
# Drakx-net rule for eth0 (cb:ad:b3:81:1a:53)
<BR><BR>
<font color="green" style="font-size: 9pt">SUBSYSTEM==&quot;net&quot;, ACTION==&quot;add&quot;, DRIVERS==&quot;?*&quot;, ATTR{address}==&quot;cb:ad:b3:81:1a:53&quot;,ATTR{type}==&quot;1&quot;, KERNEL==&quot;eth*&quot;, NAME=&quot;eth0&quot;</font>
<BR>
# PCI device 0x10ec:0x8168 (r8169)<BR>
SUBSYSTEM==&quot;net&quot;, ACTION==&quot;add&quot;, DRIVERS==&quot;?*&quot;, ATTR{address}==&quot;0b:01:ab:ba:3b:15&quot;, ATTR{type}==&quot;1&quot;, KERNEL==&quot;eth*&quot;, NAME=&quot;eth1&quot;
<BR><BR>
First entry configures the interface as we hope NAME=&quot;eth0&quot; for udev for the original mac-address in ATTR..., this is not the mac-address renewed by macchanger within /etc/rc.local later on, else set this exchanged one (renewed by macchanger already at this place), the second entry configures the PCI-interface of ITX-220 for, as we hope, NAME=&quot;eth1&quot;. This PCI-entry, or both entries, might be automatically generated by udev. Lookout, that belonging NAME is always eth0 is always the NAME in the first case (first entry) and eth1 in the last case (second entry) (and never eth0).
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>ifcfg-eth0</B>
<BR><BR>
/etc/sysconfig/network-scripts/ifcfg-eth0
</font>
<BR><BR>
<font color="green" syle="font-size: 9pt">DEVICE=eth0<BR>
BOOTPROTO=dhcp<BR>
ONBOOT=no<BR>
METRIC=5<BR>
MII_NOT_SUPPORTED=yes<BR>
USERCTL=yes<BR>
DNS1=127.0.0.1<BR>
RESOLV_MODS=yes<BR>
LINK_DETECTION_DELAY=6<BR>
IPV6INIT=no<BR>
IPV6TO4INIT=no<BR>
ACCOUNTING=yes<BR>
DHCP_CLIENT=dhclient -4 -cf /etc/dhcp/dhclient.conf eth0<BR>
NEEDHOSTNAME=no<BR>
PEERDNS=no<BR>
PEERYP=no<BR>
PEERNTPD=no<BR>
TYPE=Ethernet<BR>
IPADDR=0.0.0.0<BR>
MACADDR=e1:a0:b0:cd:a1:b8 # original OR <B>&quot;black masked&quot;</B> hardware address (ethernet-card): Try /etc/rc.local. &quot;macchanger --mac e1:a0:b0:cd:a1:b8 eth0&quot; and set in Linfw3 &quot;your IP&quot; to the by this mac-address new resp. origin pregiven one (local IP) next (or past) the connection-build-up. The computer (system) might break down after all these changes, but after some newstarts, the system will gain its old&#180;n good stability right back.</font>
<BR><BR>
<font style="font-size: 9pt">More network troubleshooting:<BR>
https://www.pcwelt.de/a/wlan-probleme-so-loesen-sie-typische-aergernisse,3389115
https://www.pcwelt.de/ratgeber/Fehlersuche-im-Netzwerk-LAN-WLAN-1953158.html
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">Intall the actual <B>netprofile</B> (rpm: omv2015, pclos, rosa2014.1) only; never choose other (elder) buggish versions!
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">If the interface is eth0 only, delete the following files:
<BR><BR>
rm -df /etc/netprofile/profiles/default/network/var/lib/dhcp/dhclient-eth1.leases<BR>
rm -df /etc/netprofile/profiles/default/network/var/lib/dhcp/dhclient-eth1.leases<BR>
...
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">Remove all other interfaces except eth0 from drbl.conf, choose eth0 only, if eth0 is the net-interface<BR>
<B>drbl.conf</B><BR>
nano cd /etc/drbl/drbl.conf
<BR><BR>
<font color="red"><B>There should be only one interface named eth0 be configured, even shown in MCC. If the net-adapter does not build up the connection, look out for all passages in files with eth not valued zero like eth1, eth2 and so on! Use grep -R to find such files and remove them (such passages)! Update dhclient (el6) and netprofile including all netprofile-plugins to netprofile (rosa2016.1, omv4)! If there are still problems, have a hort time to plug out the net adapter of the DSL-Modem to plug it in again for a new connection build-up with the DSL-provider. Now the net adapter should work fine and, as we hope forever!</B></font>
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Netz-Aliase</B>
<BR><BR>
/etc/networks 
</font>
<BR><BR>
<font color="green" font-size:"9pt">default 0.0.0.0<BR>
loopback 127.0.0.0<BR>
link-local 169.254.0.0 # link-local 169.254.0.0 # In a computer network, a link-local address is a network address that is valid only for communications within the network segment (link) or the broadcast domain that the host is connected to. Link-local addresses are most often assigned automatically through a process known as stateless address autoconfiguration or link-local address autoconfiguration. Link-local addresses are not guaranteed to be unique beyond a single network segment. Routers therefore do not forward packets with link-local addresses.<BR>
For protocols that have only link-local addresses, such as Ethernet,[dubious - discuss] hardware addresses assigned by manufacturers in networking elements are unique, consisting of a vendor identification and a serial identifier.
Link-local addresses for IPv4 are defined in the address block 169.254.0.0/16 in CIDR notation. In IPv6, they are assigned the address block fe80::/10, https://en.wikipedia.org/wiki/Link-local_address.</font>
<BR><BR>
<font style="font-size: 9pt">
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Preload-acceleration</B><BR>
The Tool Preload accelerates not the boot time, but program starts or autostarts (under &quot;Start programs&quot;), that are used often or regulary awaiting past each system login. This simple service protcols the program favorites and loads them into the RAM right before. The program start accelerates by this. Preload is obtainable as rpm and deb packet. <BR>
<BR><BR>
A manual configuration is not essential, but possible (&quot;/etc/preload.conf&quot;) (start preload for example within /etc/rc.local)<BR>
https://www.pcwelt.de/ratgeber/Schneller_Linux-Start_ueber_Systemd_-_so_geht_s-Dienste_optimieren-8259105.html
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>rkhunter, chkrootkit, Lynis - security check</B><BR>
With lynis an audit can simply be made:
<BR><BR>
su<BR>
lynis audit system --quick
<BR><BR>
After the first run one gets confronted with the total result named &quot;Hardening index&quot;. &quot;Warnings&quot; and &quot;Suggestions&quot; howto secure resp. harden the system are shown during the scrolling.<BR>
https://www.kuketz-blog.de/linux-systemhaertung-basis-linux-haerten-teil2/
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Optimized usage of graphic cards and monitors in Linux</B></font>, PC-WELT.de, 30.04.2021<BR>
[...] The standard installed Open-Source-graphic-card-driver are sufficient for the most user, for more optimized performance the proprietary driver from manufacturer migh be recommended. <BR>
https://www.pcwelt.de/ratgeber/Grafikkarten-Monitore-in-Linux-optimal-nutzen-11020222.html
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Delete X Windows on server</B><BR>
X Windows on server is not required. There is no reason to run X Windows on your dedicated mail and Apache web server. You can disable and remove X Windows to improve server security and performance. Edit /etc/inittab and set run level to 3. Finally, remove X Windows system, enter:
<BR><BR>
# yum groupremove &quot;X Window System&quot;<BR>
On CentOS 7/RHEL 7 server use the following commands:<BR>
# yum group remove &quot;GNOME Desktop&quot;<BR>
# yum group remove &quot;KDE Plasma Workspaces&quot;<BR>
# yum group remove &quot;Server with GUI&quot;<BR>
# yum group remove &quot;MATE Desktop&quot;
<BR><BR>
https://www.cyberciti.biz/tips/linux-security.html
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>X-Server: Howto secure up: Host- and cookie-based access</B><BR>
 he number 1 rated high risk system vulnerability noted by the recent ISS audit of BNL was the use of &quot;xhost +&quot; or an open X display. Using &quot;xhost +&quot; allows anyone the ability to watch your keystrokes, capture windows and insert command strings into your windows. This situation is particularly bad when you have root access to a machine. There is no legitimate reason to run &quot;xhost +&quot;. Most people will be using ssh to make their connections to other machines than their desktop and ssh tunnels X11 traffic, eliminating any need for &quot;xhost +&quot;. To use turn on X11 forwarding with ssh call it like:
<BR><BR>
ssh -X host.domain
<BR><BR>
This can be turned on by default by adding the following to &#36;HOME/.ssh/config:
<BR><BR>
Host *.bnl.gov<BR>
ForwardX11 yes<BR>
<BR>
Make sure of the following things:
<BR><BR>
You should not set your DISPLAY variable, ssh will do it for you. It will look something like:
<BR><BR>
echo &#36;DISPLAY<BR>
localhost:12.0
<BR><BR>
X11 forwarding must be allowed by the SSH server. Check /etc/ssh/sshd_config for a line saying &quot;X11Forwarding yes&quot;. <BR>
On Linux/UNIX machines, the &quot;xhost +&quot; command can be issued at many locations, so you will have to remember, where you did it or find the location to turn it off (I believe that all recent version of the Linux X server have &quot;xhost -&quot; as the default). If you cannot find where the &quot;xhost +&quot; command is issued, adding a call to &quot;xhost -&quot; somewhere will turn it off.
<BR><BR>
Some of the most common files where you can find the &quot;xhost +&quot; command are in the X11 startup files. These file are
<BR><BR>
&#36;HOME/.Xclients<BR>
&#36;HOME/.Xclients.gnome<BR>
&#36;HOME/.Xclients.kde<BR>
&#36;HOME/.xinitrc<BR>
&#36;HOMN/.xsession<BR>
/etc/X11/xinit/xinitrc<BR>
/usr/X11R6/bin/startx<BR>
/usr/X11R6/lib/X11/xdm/Xsession 
<BR><BR>
Also, doing a man xinit will give you more information on startup files which are executed when one starts up X11.
<BR><BR>
If you want to test to see whether you have fixed the &quot;xhost +&quot; problem on your systems, log into another unix computer, disable the ssh X11 encryption channel by resetting the &#36;DISPLAY environment variable back to the server port 0 of your desktop, and then try starting up an xclock. For example, type the following commands
<BR><BR>
ssh youraccount&#64;yourfavoritunixserver.phy.bnl.gov<BR>
setenv DISPLAY yourdesktop.phy.bnl.gov:0<BR>
xclock
<BR><BR>
If an xclock pops up on your screen, you still have not properly enabled X11 access control. You should contact your computer liaison for further assistance.
<BR><BR>
Xterminals<BR>
To enable access control (set xhost -) on Tektronix Xterminals bring up the &quot;Setup&quot; menu (F3 key). In the &quot;Configuration Summaries&quot; pull down menu select &quot;X Environment&quot;. On the X Environment page toggle &quot;Enable Access Control&quot; to &quot;Yes&quot;. Return to the Main Menu and then &quot;Save Settings to NVRAM&quot;. The terminal will now reject all X connections except those coming from the machine you connect to via XDM and those coming through tunnels to you XDM host created when you ssh to another machine. If you run &quot;xhost +&quot; on the XDM host, then you will again disable access control, so you should make sure that you do not do this in any of the X setup files (see the UNIX discussion above).
<BR><BR>
The following is an e-mail from Ofer Rind, who tells us how to enable X11 authentication on NCD Xterminals. Thanks Ofer for you post.<BR>
 -----------<BR>-
Disabling Xhost+ on an Xterminal<BR>
(NB: This was tried on both NCD and Textronix Xterminals and seemed to work; however, your mileage may vary.  The description is for an NCD.)
Press Alt-F3 to pull up the Xterminal control bar.  Select &quot;Change Setup     Parameters&quot; from the &quot;Setup&quot; menu.  When the setup parameters window pops     up, select &quot;Access Control.&quot;  This will expand the menu, revealing an     option called &quot;Enable Access Control.&quot;  Turn this on by pressing the     adjacent square.  Then, at the bottom of setup window, press the &quot;Apply&quot;
button to effect the change.  This sometimes takes several seconds, be     patient.  When the arrow cursor returns, close the setup window and return     to your previously scheduled program.  X access control should now     (hopefully) be enabled.  NOTE that this access control can be superseded     by a user who logs in on the Xterm and sets &quot;xhost +&quot;.<BR>
Quelle: http://www.phy.bnl.gov/cybersecurity/old/xhost_plus.html
<BR><BR>
So our settings typed in terminal and /etc/rc.local after login to superuser by command &quot;su&quot; are (reset by &quot;xhost +&quot; on problems past the login):
<BR><BR>
<B>xhost -<BR>
xhost +si:localuser:local-username</B><BR>
xhost +si:localuser:lokaler-Benutzername# lokaler-Benutzername: nur user, d.h. alle anderen Benutzer sind gesperrt, darunter Benutzer root, surfuser und toruser<BR>
xhost -si:localuser:root # bereits mit &quot;xhost -&quot;<BR>
xhost -si:localuser:toruser  # bereits mit &quot;xhost -&quot;<BR>
xhost -si:localuser:surfuser # bereits mit &quot;xhost -&quot;<BR>
xhost -inet6:user&#64; # Das &#64;-Zeichen muss bei inet6 (IPv6) im Unterschied zu si hinter dem Benutzernamen user stehen.<BR>
xhost -nis:user&#64; # nis: Secure RPC network
<BR><BR>
<B>Output of command xhost:<BR>
access control enabled, only authorized clients can connect<BR>
SI:localuser:local-username</B>
<BR><BR>
Do not set it for any other user, even NOT root! These simple two rules (for example in /etc/rc.local) make the system once more <i>mouseclick-fast</i>..
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>X-Server, cookie-based access: MIT-MAGIC-COOKIE-1</B><BR>
When using xdm (X Display Manager) to log in, you get a much better access method: MIT-MAGIC-COOKIE-1.<BR>
A 128-bit &quot;cookie&quot; is generated and stored in your .Xauthority file. If you need to allow a remote machine access to your display, you can use the xauth command and the information in your .Xauthority file to provide access to only that connection. See the Remote-X-Apps mini-howto, available at<BR> http://metalab.unc.edu/LDP/HOWTO/mini/Remote-X-Apps.html. 
<BR><BR>
<B>Cookie-based access</B><BR>
The cookie-based authorization methods are based on choosing a magic cookie (an arbitrary piece of data) and passing it to the X display server when it is started; every client that can prove having knowledge of this cookie is then authorized connection to the server.<BR>
These cookies are created by a separate program and stored in the file .Xauthority in the user&#180;s home directory, by default. As a result, every program run by the client on the local computer can access this file and therefore the cookie that is necessary for being authorized by the server. If the user wants to run a program from another computer on the network, the cookie has to be copied to that other computer. How the cookie is copied is a system-dependent issue: for example, on Unix-like platforms, scp can be used to copy the cookie.<BR>
The two systems using this method are MIT-MAGIC-COOKIE-1 and XDM-AUTHORIZATION-1. In the first method, the client simply sends the cookie when requested to authenticate. In the second method, a secret key is also stored in the .Xauthority file. The client creates a string by concatenating the current time, a transport-dependent identifier, and the cookie, encrypts the resulting string, and sends it to the server.<BR>
The xauth application is a utility for accessing the .Xauthority file. The environment variable XAUTHORITY can be defined to override the name and location of that cookie file.<BR>
The Inter-Client Exchange (ICE) Protocol implemented by the Inter-Client Exchange Library for direct communication between X11 clients uses the same MIT-MAGIC-COOKIE-1 authentication method, but has its own iceauth utility for accessing its own .ICEauthority file, the location of which can be overridden with the environment variable ICEAUTHORITY. ICE is used, for example, by DCOP and the X Session Management protocol (XSMP).<BR>
https://en.wikipedia.org/wiki/X_Window_authorization
<BR><BR>
Fetch the magic cookie entry relevant to your local display:<BR>
[garth&#64;server1 ~]&#36; echo xauth add xauth list &#36;{DISPLAY#localhost}<BR>
xauth add server1.localdomain/unix:12 MIT-MAGIC-COOKIE-1 2928a6e16b7d6d57041dcee632764b72<BR>
Switch user to &quot;oracle&quot; and add the entry into your /home/oracle/.Xauthority file (by copying the ‘xauth add…&#180; line from above:
<BR><BR>
[garth&#64;server1 ~]&#36; sudo su - oracle<BR>
[oracle&#64;server1 garth]&#36; echo &#36;DISPLAY<BR>
localhost:12.0<BR>
[oracle&#64;server1 garth]&#36; xauth add server1.localdomain/unix:12 MIT-MAGIC-COOKIE-1 2928a6e16b7d6d57041dcee632764b72<BR>
xauth:  creating new authority file /home/oracle/.Xauthority
<BR><BR>
After this your X-session should work…try something like &quot;xcalc&quot; or &quot;firefox&quot; to test it first and you should be ready to go!<BR>
http://www.snapdba.com/2013/02/ssh-x-11-forwarding-and-magic-cookies/
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">Also <B>use ssh to allow secure X connections.</B> This has the advantage of also being transparent to the end user, and means that no unencrypted data flows across the network. 
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">Also <B>disable any remote connections to your X server by using the &#180;-nolisten tcp&#180; option to your X server</B>. This will prevent any network connections to your server over tcp sockets. <BR>
Take a look at the Xsecurity man page for more information on X security. The safe bet is to use xdm to login to your console and then use ssh to go to remote sites on which you wish to run X programs.<BR>
http://www.tldp.org/HOWTO/Security-HOWTO/password-security.html#AEN698
<BR><BR>
kdm: /usr/share/config/kdm/kdmrc
<BR><BR>
...<BR>
AllowNullPasswd=false<BR>
AllowRootLogin=false<BR>
AllowShutdown=None<BR>
AutoReLogin=false<BR>
...<BR>
<B>ServerArgsLocal=-deferglyphs 16 -nolisten tcp</B><BR>
...
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>X11: Graphic card adjustments, especially for opengl- and SDL-games</B><BR>
Adjustment influences system and graphic card.<BR>
BIOS-Setup: Northbridge -&gt; COMBO-mode<BR>
Start driconf (hardware see data sheed)<BR>
Activate:<BR>
1) performance<BR>
+ synchronisation follows the verticale frequency rate, so that programs choose the minimal one<BR>
+ buffer object reuse: Enable reuse of all size of buffered objects<bR>
2 ) display (screen) quality<BR>
+ activate S3TC texture compression, even if unsupported by software
<BR>
3) on failures<BR>
+ activate the immediate emptyting of the batch buffer each call for char<BR>
+ activate the immediate empying of the GPU-buffer<BR>
+ disable throttling on first batch after flush<BR>
+ force GLSL extension default behavior to &quot;warn&quot;<BR>
+ disable backslash-based line continuation in GLSL-source<BR>
+ disable dual source blending<BR>
+ perform code generation at shader link time
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Deny administrative remote access</B><BR>
/etc/security/access.conf should be changed the way, that a remote access into an administrative account becomes impossible. By this user have to start the program su (or sudo) for administrative rights, so that there is always a track to check.<BR>
Add the following line into /etc/security/access.conf:
<BR><BR>
        -:wheel:ALL EXCEPT LOCAL
<BR><BR>
Do not forget to activate pam-module each service (or the standard configuration), if you want changings within /etc/security/access.conf get noticed.<BR>
https://www.debian.org/doc/manuals/securing-debian-howto/ch4.de.html
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>How to Check Password Expiration of User</B><BR>
In Linux, user&#180;s passwords are stored in &#180;/etc/shadow&#180; file in encrypted format. To check password expiration of user&#180;s, you need to use &#180;chage&#180; command. It displays information of password expiration details along with last password change date. These details are used by system to decide when a user must change his/her password.
To view any existing user&#180;s aging information such as expiry date and time, use the following command.
<BR><BR>
#chage -l username<BR>
To change password aging of any user, use the following command.<BR>
#chage -M 60 username<BR>
#chage -M 60 -m 7 -W 7 userName<BR>
Parameters<BR>
-M Set maximum number of days<BR>
-m Set minimum number of days
<BR><BR>
Quelle: https://www.tecmint.com/linux-server-hardening-security-tips/
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Checking Accounts for Empty Passwords</B><BR>
Any account having an empty password means its opened for unauthorized access to anyone on the web and it&#180;s a part of security within a Linux server. So, you must make sure all accounts have strong passwords and no one has any authorized access. Empty password accounts are security risks and that can be easily hackable. To check if there were any accounts with empty password, use the following command.
<BR><BR>
cat /etc/shadow | awk -F: &#180;(&#36;2==""){print &#36;1}&#180;
<BR><BR>
https://www.tecmint.com/linux-server-hardening-security-tips/
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">Keep a (daily) watch on<B>log-files</B> (for example with logwatch) as much as the last logins in /var/log/lastlog<BR>
With the help of the command lastlog the content from /var/log/lastlog can be transferred into a readable format.<BR>
https://www.stefanux.de/wiki/doku.php/linux/hardening
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Services should not run as root-processes</B><BR>
deactivate services not needed (smalling the place for attacks): check out opened ports<BR>
netstat -lnptu<BR>
Internetsuperserver <BR>
veralteter inetd noch n&ouml;tig?<BR>
xinetd sicher konfigurieren<BR>
(gef&auml;hrdete) Dienste absichern:<BR>
nur auf einer bestimmten IP lauschen, auf andere Ports wechseln<BR>
evtl. Port-knocking einsetzen (Beispiel SSH)<BR>
Bind mit chroot<BR>
sicheren FTP-Server einsetzen: vsftp oder pure-ftpd<BR>
unsichere Dienste nicht f&uuml;r kritische Aufgaben (Login) zulassen:<BR>
FTP<BR>
Telnet<BR>
veraltete r-Dienste (rsh, rlogin, …)<BR>
nur notwendige Benutzerkonten einrichten<BR>
regelm&auml;&szlig;ig die Passw&ouml;rter der Benutzer auf unsichere Passw&ouml;rter &uuml;berpr&uuml;fen<BR>
leere Passw&ouml;rter nicht erlauben<BR>
Kernel absichern<BR>
eigenen (minimalen) Kernel bauen<BR>
Integrit&auml;tschecker, z.B. tripwire als cronjob laufen lassen. Die Signaturen sollten auf einem sicheren Drittsystem gelagert werden bzw. read-only gemountet sein (z. B. auf einer CD oder Diskette mit Schreibschutz)<BR>
Die Benutzung von Shadow ist meist schon aktiviert (shadowconfig on)
Protokolle (Logfiles) sichern:<BR>
Loghost einrichten oder<BR>
Logfiles absichern: Mit Secure Logging von Core-Wisdom k&ouml;nnen Sie Logfiles auch in mySQL-Datenbanken ablegen oder per Fingerabdruck gegen Ver&auml;nderung sichern.<BR>
msyslogd oder<BR>
logrotate → Log per mail<BR>
regelm&auml;&szlig;ig nach suid-Programme suchen:<BR>
automatisch mit Programmen:<BR>
sxid schickt eine t&auml;gliche Report &uuml;ber dazugekommene suid/sgid per mail zu<BR>
manuell:<BR>
root-suids: <BR>
find / -perm -4000 2&gt;/dev/null<BR>
allgemein suids: <BR>
find / -perm +6000<BR>
sgid-programme: <BR>
find / -perm -2000 2&gt;/dev/null<BR>
volle Ausgabe mit allen Rechten bekommt man mit: <BR>
ls -lad --full-time &#180;find / -perm +6000&#180;<BR>
Banner (Versionsnummern etc.) von Diensten abschalten<BR>
 in /etc/motd die Kernelversion nicht anzeigen lassen, stattdessen Warnungen f&uuml;r Angreifer<BR>
SSH: Im Sourcecode<BR>
Webserver:<BR>
Logfiles studieren<BR>
Monitoring betreiben<BR>
Source: https://www.stefanux.de/wiki/doku.php/linux/hardening
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>SVGA</B><BR>
SVGAlib programs are typically SUID-root in order to access all your Linux machine&#180;s video hardware. This makes them very dangerous. If they crash, you typically need to reboot your machine to get a usable console back. Make sure any SVGA programs you are running are authentic and can at least be somewhat trusted. Even better, don&#180;t run them at all. <BR>
Quelle: http://www.tldp.org/HOWTO/Security-HOWTO/password-security.html#AEN698
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>GGI (Generic Graphics Interface project)</B><BR>
The Linux GGI project is trying to solve several of the problems with video interfaces on Linux. GGI will move a small piece of the video code into the Linux kernel, and then control access to the video system. This means GGI will be able to restore your console at any time to a known good state. They will also allow a secure attention key, so you can be sure that there is no Trojan horse login program running on your console.<BR> http://synergy.caltech.edu/~ggi/ <BR>
Source: http://www.tldp.org/HOWTO/Security-HOWTO/password-security.html#AEN698
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Disable USB stick to detect (recommended for companies etc.)</B><BR>
Many times it happens that we want to restrict users from using USB stick in systems to protect and secure data from stealing. Create a file &#180;/etc/modprobe.d/no-usb&#180; and adding below line will not detect USB
storage.
<BR><BR>
install usb-storage /bin/true
<BR><BR>
https://www.tecmint.com/linux-server-hardening-security-tips/
<BR><BR>
Disbale USB/firewire/thunderbolt-devices<BR>
echo &quot;;install usb-storage /bin/true&quot; &gt;&gt; /etc/modprobe.d/disable-usb-storage.conf<BR>
echo &quot;blacklist firewire-core&quot; &gt;&gt; /etc/modprobe.d/firewire.conf<BR>
echo &quot;;blacklist thunderbolt&quot; &gt;&gt; /etc/modprobe.d/thunderbolt.conf
<BR><BR>
Once done, users can not quickly copy sensitive data to USB devices or install malware/viruses or backdoor on your Linux based system.<BR>
https://www.cyberciti.biz/tips/linux-security.html
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>System-Banner</B><BR>
Formulate any &quot;welcome&quot;-text after the login into the server on the system in /usr/lib/issue.net to make unwanted users really think, if to proceed or if it would be better to log out or get away.. 
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>How to Spoof a MAC Address (identifying hardware address of the ethernet card) permanently</B>
[...] A 48-bit MAC address (e.g., 08:4f:b5:05:56:a0) is a globally unique identifier associated with a physical network interface, which is assigned by a manufacturer of the corresponding network interface card. Higher 24 bits in a MAC address (also known as OUI or &quot;Organizationally Unique Identifier&quot;) uniquely identify the organization which has issued the MAC address, so that there is no conflict among all existing MAC addresses.<BR>
While a MAC address is a manufacturer-assigned hardware address, it can actually be modified by a user. This practice is often called &quot;MAC address spoofing.&quot; In this tutorial, I am going to show how to spoof the MAC address of a network interface on Linux.<BR>
Why Spoof a MAC Address?<BR>
There could be several technical reasons you may want to change a MAC address. Some ISPs authenticate a subscriber&#180;s Internet connection via the MAC address of their home router. Suppose your router is just broken in such a scenario. While your ISP re-establishes your Internet access with a new router, you could temporarily restore the Internet access by changing the MAC address of your computer to that of the broken router.<BR>
Many DHCP servers lease IP addresses based on MAC addresses. Suppose for any reason you need to get a different IP address via DHCP than the current one you have. Then you could spoof your MAC address to get a new IP address via DHCP, instead of waiting for the current DHCP lease to expire who knows when.<BR>
Technical reasons aside, there are also legitimate privacy and security reasons why you wish to hide your real MAC address. Unlike your layer-3 IP address which can change depending on the networks you are connected to, your MAC address can uniquely identify you wherever you go. Call me a paranoid, but you know what this means to your privacy. There is also an exploit known as piggybacking, where a hacker snoops on your MAC address on a public WiFi network, and attempts to impersonate you using your MAC address while you are away.<BR>
[...] If you want to spoof your MAC address permanently across reboots, you can specify the spoofed MAC address in interface configuration files. For example, if you want to change the MAC address of eth0, do the following.<BR>

<BR><BR>
macchanger: Some things have to be done: &quot;macchanger -r eth0&quot; suggests a random MAC-address to add into /etc/rc.local (by &quot;macchanger --mac new-MAC-address eth0&quot;), same in /etc/sysconfig/network-scripts/ifcfg-eth0 and change the by this new obtained, local IP in LINFW3 (Dialog -&gt; NONYESNO -&gt; own IP), eventually restart the system.<BR>
On Fedora, CentOS or RHEL:
<BR><BR>
nano /etc/sysconfig/network-scripts/ifcfg-eth0
<BR><BR>
DEVICE=eth0<BR>
MACADDR=00:00:00:00:00:01
<BR><BR>
Alternatively, you can create a custom startup script in /etc/NetworkManager/dispatcher.d as follows, especially if you are using Network Manager. I assume that you already installed macchanger.
<BR><BR>
nano /etc/NetworkManager/dispatcher.d/000-changemac
<BR><BR>
#!/bin/bash<BR>
<BR>
case &quot;&#36;2&quot; in<BR>
    up)<BR>
        macchanger --mac=00:00:00:00:00:01 &quot;&#36;1&quot;<BR>
        ;;<BR>
esac
<BR><BR>
... or macchanger -r &quot;&#36;1&quot;
Quelle: https://xmodulo.com/spoof-mac-address-network-interface-linux.html<BR>
This might depend on the hardware. &quot;macchanger -r eth0&quot; can be started at the end of a dialin-script like /usr/sbin/ifup or ifup-eth too for example. The same is possible by ifconfig.
<BR><BR>
If all this does not function, try same or similar command manually by terminal after the dialin. 
<BR><BR>
Find out the actual set MAC- resp. MAC-Fake-Adresse by
<BR><BR>
macchanger -s eth0 or
<BR><BR>
ifconfig
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Adjustments within /etc/sysctl/network-scripts/ifcfg-eth0</B>
<BR><BR>
DEVICE=eth0<BR>
# MACADRESS=....<BR>
BOOTPROTO=dhcp<BR>
ONBOOT=no # automized dialin each boot<BR>
METRIC=5<BR>
MII_NOT_SUPPORTED=yes<BR>
USERCTL=yes # user are allowed to configure the dialin and to dial in itself<BR>
DNS1=127.0.0.1<BR>
DNS2=203.13.81.14<BR>
RESOLV_MODS=yes<BR>
LINK_DETECTION_DELAY=6<BR>
IPV6INIT=no # perfer IPv4 with dynamic (changing) IP<BR>
IPV6TO4INIT=no<BR>
ACCOUNTING=no<BR>
DHCP_CLIENT=dhclient<BR>
NEEDHOSTNAME=no<BR>
PEERDNS=no<BR>
PEERYP=no<BR>
PEERNTPD=no
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Resolver configuration file</B>
<BR>
File /etc/host.conf contains special information, how to configure the resolver library with a configuration keyword each line, followed by belonging configuration information.<BR>
/etc/host.conf<BR> 
<BR><BR>
order hosts,bind<BR>
multi on<BR>
reorder on<BR>
<B>nospoof on<BR>
spoofalert on</B>
<BR><BR>
Quelle: man host.conf
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>NetworkManager-Configuration by /etc/NetworkManager/NetworkManager.conf:</B>
<BR><BR>
[main]<BR>
dns=none<BR>
plugins=keyfile<BR>
dhcp=dhclient<BR>
rc-manager=unmanaged<BR>
<BR>
[ifupdown]<BR>
managed=false<BR>
<BR>
[logging]<BR>
level=error<BR>
domains=none
<BR><BR>
More (secure) configurations of he NetworkManager by NetworkManager.conf see https://developer.gnome.org/NetworkManager/1.11/NetworkManager.conf.html 
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Deactivate NIS</B><BR>
... in order to avoid password-sharing. For this, LDAP is recommended.
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Sicheres finger</B><BR>
Es gibt viele finger-Daemon, als besonders sicher gilt ffingerd. Hier kann die Anzahl der zur selben Zeit laufenden Prozesse und die Anzahl der darauf zugreifenden Hosts limitiert und das verf&uuml;gbare Interface eingegrenzt werden.
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><font color="green" style="font-size: 12pt"><B>Sichere Nutzung von PCs unter Ubuntu (und andere, Anm., Gooken)- f&uuml;r kleine Unternehmen und Selbstst&auml;ndige v2.0</B></font> (PDF, 189KB, Datei ist barrierefrei⁄barrierearm), BSI, 01.08.2018<BR>
https://www.allianz-fuer-cybersicherheit.de/ACS/DE/_/downloads/BSI-CS_009.html
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><font color="green" style="font-size: 12pt"><B>Guidance<BR>
EUD Security Guidance: Ubuntu 18.04 LTS</B></font><BR>
Created:  24 Jul 2018<BR>
Updated:  24 Jul 2018<BR>
https://www.ncsc.gov.uk/guidance/eud-security-guidance-ubuntu-1804-lts
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>paxctld von grsecurity.net (Aufruf paxctld in /etc/rc.local mit &quot;paxctld -c /etc/paxctld.conf -d -p /var/run/paxctld&quot;</B><BR>
https://wiki.gentoo.org/wiki/Project:Hardened/PaX_Quickstart<BR>
/etc/paxctld.conf (allowed is s,r,p,m and E)<BR>
e,E - https://pax.grsecurity.net/docs/emutramp.txt<BR>
m,M - http://pax.grsecurity.net/docs/mprotect.txt<BR>
p,P - http://pax.grsecurity.net/docs/pageexec.txt<BR>
r,R - http://pax.grsecurity.net/docs/randmmap.txt<BR>
s,S - http://pax.grsecurity.net/docs/segmexec.txt<BR>
https://en.wikibooks.org/wiki/Grsecurity/Additional_Utilities
<BR><BR>
<font color="green" style="font-size: 9pt">#gdb<BR>
# /usr/bin/gdb                    srpm
<BR><BR>
# steam<BR>
# /usr/lib32/ld-linux.so.2        m<BR>
# /usr/lib64/ld-linux.so.2        m
<BR><BR>
# node<BR>
# /usr/bin/node                   m<BR>
# /usr/bin/perf                   m
<BR><BR>
# firefox<BR>
# /usr/lib64/firefox/firefox              m<BR>
# /usr/lib64/palemoon/palemoon            m
<BR><BR>
# tor-browser<BR>
# /home/toruser/tor*/Browser/firefox    m
<BR><BR>
# /usr/lib64/thunderbird/thunderbird     m
<BR><BR>
# oxide<BR>
/usr/lib/x86_64-linux-gnu/oxide-qt/oxide-renderer m
<BR><BR>
# valgrind<BR>
/usr/bin/valgrind               m
<BR><BR>
# python<BR>
/usr/bin/python                 E<BR>
/usr/bin/python2.6              E<BR>
/usr/bin/python2.7              E<BR>
/usr/bin/python3.2mu     E
<BR><BR>
# java<BR>
# /usr/lib/jvm/java-6-sun-1.6.0.10/jre/bin/java           m<BR>
# /usr/lib/jvm/java-6-sun-1.6.0.10/jre/bin/javaws         m<BR>
# /usr/lib/jvm/java-6-openjdk/jre/bin/java                m<BR>
# /usr/lib/jvm/java-6-openjdk/jre/bin/java                m<BR>
# /usr/lib/jvm/java-8-openjdk/jre/bin/java                m<BR>
# /usr/lib/jvm/oracle-jdk-bin-1.8/bin/java                m<BR>
# /usr/lib/jvm/oracle-jdk-bin-1.8/jre/bin/java            m<BR>
# /usr/lib/jvm/zulu-8-amd64/bin/java                      m
<BR><BR>
# openrc
/lib/rc/bin/lsb2rcconf          E
<BR><BR>
# tuned<BR>
# /usr/sbin/tuned         m
<BR><BR>
# libreoffice<BR>
# Ubuntu doesn&#180;t seem to carry this patch:<BR>
# https://bz.apache.org/ooo/show_bug.cgi?id=80816<BR>
# libreoffice will still run fine without the below line,<BR>
# but it will report an RWX mprotect attempt<BR>
# /usr/lib/libreoffice/program/soffice.bin      m</font>
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Lock virtual consoles except tty7 by default</B><BR>
/etc/inittab, comment in:<BR>
...<BR>
# Run gettys in standard runlevels<BR>
#1:2345:respawn:/sbin/mingetty tty1<BR>
#2:2345:respawn:/sbin/mingetty tty2<BR>
#3:2345:respawn:/sbin/mingetty tty3<BR>
#4:2345:respawn:/sbin/mingetty tty4<BR>
#5:2345:respawn:/sbin/mingetty tty5<BR>
#6:2345:respawn:/sbin/mingetty tty6<BR>
...
<BR><BR>
<font color="red"><B>Start as few root-processes as possible!</B></font>
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Remaining essential root-processes except those started by kernel (kthreadd):</B><BR>
<BR><BR>
init<BR>
X # xhost-access-control or run in usermode, see https://wiki.gentoo.org/wiki/Non_root_Xorg, and X with option &quot;--nolisten tcp&quot; (by default, check it out by pressing keys ESC + STRL and moving mouse over process X; configuration for X: /etc/X11/xorg.conf section &quot;ServerLayout&quot;)<BR>
hald # makes acpid superfluosly<BR>
console-kit-daemon # needed only for the login, timeout possible<BR> 
wpa-supplicant # part of NetworkManager<BR>
psad # or iptables: psd, port-scan-detection; start only with securing options like --no-rdns, --no-whois and --no-snort-sids<BR><BR>
udevd # devices and interfaces<BR>
kdm<BR>
syslogd<BR>
klogd<BR>
gpm<BR>
cupsd<BR>
dhclient # or dhcpd etc.<BR>
pam_timestamp_c<BR>
master<BR>
spamd #  alternatively try bogofilter for example always running in usermode 
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Lost or forgotten password, no access onto the system?</B><BR>
The steps you need to take in order to recover from this depend on whether or not you have applied the suggested procedure for limiting access to lilo and your system&#180;s BIOS.<BR>
If you have limited both, you need to disable the BIOS setting that only allows booting from the hard disk before proceeding. If you have also forgotten your BIOS password, you will have to reset your BIOS by opening the system and manually removing the BIOS battery.<BR>
Once you have enabled booting from a CD-ROM or diskette enable, try the following:
<BR><BR>
    Boot-up from a rescue disk and start the kernel
<BR><BR>
    Go to the virtual console (Alt+F2)
<BR><BR>
    Mount the hard disk where your /root is
<BR><BR>
    Edit (Debian 2.2 rescue disk comes with the editor ae, and Debian 3.0 comes with nano-tiny which is similar to vi) /etc/shadow and change the line:
<BR><BR>
           root:asdfjl290341274075:XXXX:X:XXXX:X::: (X=any number)
<BR><BR>
    to:
<BR><BR>
           root::XXXX:X:XXXX:X:::
<BR><BR>
This will remove the forgotten root password, contained in the first colon separated field after the user name. Save the file, reboot the system and login with root using an empty password. Remember to reset the password. This will work unless you have configured the system more tightly, i.e. if you have not allowed users to have null passwords or not allowed root to login from the console.<BR>
https://www.debian.org/doc/manuals/securing-debian-howto/ch12.de.html
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Checking file system integrity</B><BR>
Are you sure /bin/login on your hard drive is still the binary you installed there some months ago? What if it is a hacked version, which stores the entered password in a hidden file or mails it in clear-text version all over the Internet?<BR>
The only method to have some kind of protection is to check your files every hour/day/month (I prefer daily) by comparing the actual and the old md5sum of this file. Two files cannot have the same md5sum (the MD5 digest is 128 bits, so the chance that two different files will have the same md5sum is roughly one in 3.4e3803), so you&#180;re on the safe site here, unless someone has also hacked the algorithm that creates md5sums on that machine. This is, well, extremely difficult and very unlikely. You really should consider this auditing of your binaries as very important, since it is an easy way to recognize changes at your binaries.<BR>
Common tools used for this are sxid, aide (Advanced Intrusion Detection Environment), tripwire, integrit and samhain. Installing debsums will also help you to check the file system integrity, by comparing the md5sums of every file against the md5sums used in the Debian package archive. But beware: those files can easily be changed by an attacker and not all packages provide md5sums listings for the binaries they provided. For more information please read Do periodic integrity checks, Section 10.2 and Taking a snapshot of the system, Section 4.19.<BR>
You might want to use locate to index the whole filesystem, if so, consider the implications of that. The Debian findutils package contains locate which runs as user nobody, and so it only indexes files which are visible to everybody. However, if you change its behaviour you will make all file locations visible to all users. If you want to index all the filesystem (not the bits that the user nobody can see) you can replace locate with the package slocate. slocate is labeled as a security enhanced version of GNU locate, but it actually provides additional file-locating functionality. When using slocate, the user only sees the actually accessible files and you can exclude any files or directories on the system. The slocate package runs its update process with higher privledges than locate, and indexes every file. Users are then able to quickly search for every file which they are able to see. slocate doesn&#180;t let them see new files; it filters the output based on your UID.<BR>
You might want to use bsign or elfsign. elfsign provides an utility to add a digital signature to an ELF binary and a second utility to verify that signature. The current implementation uses PKI to sign the checksum of the binary. The benefits of doing this are that it enables one to determine if a binary has been modified and who created it. bsign uses GPG, elfsign uses PKI (X.509) certificates (OpenSSL).<BR>
https://www.debian.org/doc/manuals/securing-debian-howto/ch4.en.html
<BR><BR>
Solution: encryption of the root-partition, see Full System Encryption (FSE)
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Lifetime hardware, conductor pathes: secured contacts on graphic cards, boards and platines</B><BR>
Sounds like it is our last advice (but of course it isn&#180;t), not to forget to put some chalk into the computer tower inside. The trick is to keep contacts on mainboard including graphic-chip resp. graphic card and other electronic devices always rust-proof and save from moisture!
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Remove online accounts of internet service provider</B><BR>
Phishing, profiling, spam, data handling, investigations by law, organized criminality, secret agencies, ad networks, large server farms, artificial intelligence, social bots, hacks, doxxing, honeypots, man-in-the-middle-attacks,  ...: Before starting with the installation of &quot;Universal Linux 2010&quot; resp. before going to update programs and system, try to remove as much online-accounts as possible, that means as making sense for you: social media, Google, paypal, online banking, online shopping, ... This might become quit difficult: So read out belonging manuals and follow the instructions. For still existing accounts security settings should be made serious hard after the logins into the online portals.
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Allround-protection through iptables-firewall Linfw3</B><BR>
Linfw3 can be downloaded during further below. With Linfw3 <u>all</u> hacker and <u>all</u> trojans can be blocked, if only the user like surfuser within a group like surfgroup are allowed the password protected start of processes going online into the net. Even superuser root resp. uid 0 belongs to all the user, who are <u>not </u> allowed going online, only processes started by (surfuser) of group (surfgroup). By this, programs can go online in a very easy way, after belonging ports once got opened in Linfw3. This is the main advantage. The next advantage: All passwords except the ones for the LUKS-encrypted root partition get irrelevant - even if others know them! The access rights for files should be set local for each user only onto &lt;=700 ( what can be done automatically per &quot;umask 077&quot; within /etc/fstab, manually by chmod or graphically through the context menu). The last risk remains in the Chrooting, settings by msec like &quot;Forbid root-access&quot;, &quot;Forbid extern access for root/forbid chrooting&quot; and/or Sandbox firejail prevent by locking the consoles of the user accounts (including root (uid 0, gid 0), but except surfuser). Even the shell-login of all system- and user-accounts except surfuser can be restricted to /sbin/nologin too - no login possible.  This can be done with msec_gui or by a special UNIX/Linux-(bash-)command). ACL-access-control (request by getfacl, settings by setfacl) can restrict processes owned (started) by surfuser access on all kind of (exectuable) files too. Scripts over once opened (established) net-connections can be blocked by Firefox-Extensions ABP, noscript and RequestPolicyBlockedContinued resp. Firefox &gt;= 64 with mechanisms against Cross-Site-Tracking/-Scripting and all other kind of tracking. Beneath this, the Port-Scan-Detektor psad or psd of iptables activated by Linfw3 does its best too! And do not forget FSE (Full System Encryption by LUKS/dm-crypt) thinking of the command mount and therefore also cryptsetup (LUKS) including such chroot... All in all the remaining risk is given only by the started root-processes from kernel from the house Linus Tovalds, although they get blocked by Linfw3 too as long as owned by root by the way already depicted. Especially one root-process envokes some distrust -  X (the X-Server, including the graphic card driver), but X can be restricted by own ACl through the command xhost as described in some points from above. There it is described, howto start X with option &quot;-nolisten tcp&quot; and that X can also be started in normal usermode. To get total paranoid, MAC (control resp. restriction of process interaction) might interest too - but that really mustn&#180;t.<BR>
This excurs specifies Linfw3, firejail, ACL-Access Control Lists, MAC, Intrusion Detection Systems (IDS, if needed), important Firefox-Extensions upon opened connections and further methods later on, past the section for updating.
<BR><BR>
<img src="images/sl-banner-450x100-black.png" alt="SL-Banner" title="SL-Banner" align="left" border="0">
Regardless from all Linux-distributions, one and the same Linux gets installed package by package, although this might not possible for each distribution as a fault of their specific architectures (library-structure and so on). 
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">We would prefer the most complete Linux by electing certain distributions getting mixed to call it slackware either by installing a brandnew distribution to mix it up after getting updated or by the backport concept we are going to describe here.<BR>
Linux resp. (backported) &quot;Universal-Linux&quot; can origin in mdv2010.1 for example. It is updated long-termed and consequently with <B>Fedora Project (fc), especially CentOS 6 (el6) </B> and CentOS 7 (el7) resp. Scientific Linux (sl6/el6, sl7/el7) and fc -&gt;  <B>EPEL (el6, el7)</B> and other el6/sl6 and el7/sl7, where each source package is listed directly under the binary one on pkgs.org. It finally managed to stop leaving rubbish over rubbish of packages from all the outworn over outworn distribution behind. The speciality for the backport-concept is, that almost one and the same version with its own releases get patched over patched in many cases for the same version by new releases, what is marked in the rpm-package name behind the point at the end of the package name, until the intern code does its work stable and secure. So one and the same package-version of the same release got fixed resp. picked out and overworked and overworked until security and functionality (as amost the best sign for security) are given, leading to new releases to one and the same versions. Nevertheless the version might differ resp. change in some, quit seldom cases too. 
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Secure Programming HOWTO</B>, David A. Wheeler, 2015-09-19<BR>
This book provides a set of design and implementation guidelines for writing secure programs. Such programs include application programs used as viewers of remote data, web applications (including CGI scripts), network servers, and setuid/setgid programs. Specific guidelines for C, C++, Java, Perl, PHP, Python, Tcl, and Ada95 are included. It especially covers Linux and Unix based systems, but much of its material applies to any system. For a current version of the book, see http://www.dwheeler.com/secure-programs<BR>
https://dwheeler.com/secure-programs/Secure-Programs-HOWTO/index.html
<BR><BR>
SuSE:<BR>
Suse Doc: Deployment Guide - Backporting Source Code<BR>
<B>SUSE uses backports extensively.</B> The information in this section helps you understand, why it can be deceptive to compare version numbers in order to judge ...<BR>
www.suse.com/documentation/sled11/book_sle_deployment/data/sec_update_backports.html
<BR><BR>
Debian:<BR>
Debian richtet <B>neues Backports-Repositorium</B> ein - Pro-Linux<BR>
Mit dem neuen Repositorium &quot;lenny-backports-sloppy&quot; stehen Debian-Anwendern k&uuml;nftig aktualisierte Programme ohne gro&szlig;e Risiken und M&uuml;hen zur Verf&uuml;gung.
www.pro-linux.de/news/1/16241/debian-richtet-neues-backports-repositorium-ein.html
<BR><BR>
This backporting is provided for CentOS for more than 10 years (CentOS 6: from year 2010 until year 2026), accompanied by CentOS 7 (until 2027).<BR>
Installed Linux can be completed to talk about this one and only Linux by installing packages from many other distributions too.<BR>
You can read more about CentOS and this fact in our section for Updates.<BR>
Alternatively you can order this complete mdv2010 already in an FSE-encrypted form (full system encryption by dracut and LUKS) preinstalled on SSD, where all updates past the update expiration time of mdv2010 including those from CentOS el7 and el6 are already installed. Now, just unpack the tarball of an actual Firefox (actual or actual ESR, extended security release from CentOS or Rosalabs) and Thunderbird (actual ESR (el6, el7)) into a directory like /usr/lib64/firefox-any-name and /usr/lib64/thunderbird-any-name and link the executable files /usr/bin/firefox by the command &quot;ln -sf /usr/lib64/firefox-any-name/firefox-bin /usr/bin/firefox&quot; to update firefox in future following the firefox-INFO-menu. We are going to describe the update of Firefox (and Konqueror) explicitly further below. At last you care for a more or less actual GNU C standard library (glibc(pclos)), for this purpose we tested mga6, ver. 2.22-29 form 17. June 2018. Of course all already installed glibc-packages can be upgraded to mga6 (2.22-29) or higher) or main glibc-package (mga6) with all other glibc-packages coming from el6. 
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">
We decided us for <B>kernel 5.4.110 (pclos)</B> with mkinitrd (pclos, rosa, mga2), nash (pclos, rosa, mga2), dracut (mga6: version 044, el6: version 004 (leads into manual LUKS-password request even in the case of existing password-key-file!, mdv2011: version 008)) on the base of the GNU C Standard Library glibc-2.31 (pclos), glibc-2.22 (mga6) out of:
<BR><BR>
glibc (el8, pclos, mga6), glibc-headers (el8), glibc-common (el8), glibc-utils (el8), glibc-all-langpacks (el8), libc6 (rosa2016.1, rosa2014.1), compat-glibc (el6), glib2.0-common (pclos, el6), glibc-i18ndata (pclos, mga6), glibc-headers (pclos, el6), glibc-static (el6), glibc-utils (pclos, mga6), glibc-profile (pclos, mga6), glibc-glibc_lsb (rosa2016.1, rosa2014.1), locales (pclos, mga6), glib2 (el6), prelink (mga6, mga7, mga5, pclos, rosa2016.1, rosa2014.1), lib64stdc++ (pclos, mga6) or (and this is our tested-well choice:) glibc complete mga6 or: glibc (pclos, mga6 main glibc, rest-rpm: el6), libstdc++ (mga6), libsigc++ (mga6)
<BR><BR>
In order to avoid error-messages of glibc (el8) during system-boot, just remove the line LC_TIME=de_DE.UTF-8 in /etc/sysconfig/i18n ! Eventually install locales (pclos, mga7, mga6), locales-en, locales-de, ... too.
<BR><BR>
additionally, but be careful, miroplayer (el6) and the MCC-printer-administration might not work anymore: lib64glib2 (rosa2014.1), lib64gio2 (rosa2014.1), lib64gobjet2 (rosa2014.1), lib64gmodule2 (rosa2014.1). If they do not, reinstall glib2 (el6) and glib2.0-common (el6).
<BR><BR>
You can get all such glibc-packages from pkgs.org and rpmfind.net without any problems, but the new filesystem of glibc for mga3 since version 2.17 consists of new linked directories in directory root named /bin, /sbin, /lib and /lib64, so that all of their files have to be copied into equal named directories of /usr: /usr/bin, /usr/sbin, /usr/lib and /usr/lib64. This can cause programs like terminal &quot;konsole&quot; not working anymore, so that the cursor remains in the upper left corner of the started terminal, to think about other terminals like the recommended xterm and the very secure rated but no unicode supporting aterm and the next step to do like installing package (rpm) shadow-utils. Konsole is still functioning only, after devpts is mounted in the device-configuration-file /etc/fstab. This can be done by the following entry: 
<BR><BR>
none /dev/pts devpts mode=620,gid=5
<BR><BR>
with gid for tty and in the user-administration of MCC set user to a member of group tty,wheel,lp. Now it is possible to install many packages from more actual distributions like not only mdv2011 and mdv2012, but also Mageia Cauldron 1 up to 4 and especially Fedora Project resp. CentOS 6.8 el6  (release: 2010, modificiaton release date (rpm) CentOS- resp. SL-release: 03.08.2015) and el7 (<font style="font-size: 9pt" color="green"><B>in the last two cases with update-guarantees until year 2026).</B></font><font style="font-size: 9pt">Now software-packages are provided by rpmfind.net and pkgs.org for CentOS (resp. el6, el7, Scientificlinux (sl6, el6), ALT Linux, Repoforge (el6.rf), CERT Forensics Tools, PUIAS Computational, KBS Extras Testing, P.N., Nux Dextop (el6.nux), Rpmforge (el6.rf), Epel (el6), Atomix, Russian Fedora (el6.ru), NauLinux School (el6.nau), Nau Linux Extras, LinuxTECH und Ghettoforge (el6.gf)), Mandriva mdv2010, mdv2011, mdv2012, Mageia5 down to Mageia 1, Rosa2014.1, Rosa2012.1, newest Fedora, OpenSuSE and Tarballs and programs for any other OS to emulate from everywhere. With el6 and el6 you can follow the <B>Gentoo-GLSA</B> (https://security.gentoo.org/glsa/ ) update security list. We list each package in our section for updates. This all can also be made for other distributions, annoying, if not. Folllowing our steps, this OpenSource-System full of device-driver can be made incomparible secure, while the iptables-firewall Linfw3 bewares the central meaning. For more details, please follow the details from our excurs as follows, especially in the section for updates. For this please notice, that one should not be forgotten: to make 1:1-backups during the installation process on at least one extern storage media, especially by command dd.</font>
<BR><BR>
report from 21.10.2004, last update: 06.23.2017. If you can not see a menu on the left side, please <a class="noflag" href="index_de.php" onMouseOver="MM_displayStatusMsg('');return document.MM_returnValue">click here</a>. 
</div>
<BR><BR>
<center><B>Time for the system boot &lt; 1 second</B></center>
<BR><BR>
<div class="normaltext">
It was long ago, year 2010, my computer satisfied my needs, even in future. Soon you will agree. You can not make more secure what is secure, same by versatile and who really follows this report by an everlasting, 100% secure computer-system including a ultraslim 18W-WLED-Monitor (T&Uuml;V certified) for about 200&euro; power-consumption 20 up to 40W only, all for about 200 &euro. Many other models might interest too. On our linksites section for &quot;News&amp;Links&quot; (<a class="noflag" href="links.php" target="mainsite" title="Wwest"> we even found out Rasperry Pi 3 and especally C.H.I.P., a 3-W-computer for 9&euro</a>;, a model with much memory and as powerful as the smartphone. Further on we are going to present an independent from defragmentation and (included) virus-scanner and so on most secure Mandriva-Linux-computer-sytem from kiosks for only some Euro in year 2010, that is able to manage quit all one can imagine, because of its covering software seized in about more than 65 GB (15 DVD) quit for free. Not only the suspend-mode is working on our hardware, where the complete monitor gets &quot;suspended&quot;,  whenever you choose the resting mode resp. state (similar to the poweroff-state by hardware), Gooken of the computer tower blinks and Mandriva (2010) turns off all devices except RAM, in order to 
<BR><BR>
<font style="font-size: 12pt" color="green"><B>&quot;boot&quot; the complete system in less than one second after pressing the powerbutton of your computer tower!</B></font>
<BR><BR> 
If this does not function, update acpid to at least 2.0.4 or el6. <B>For these two suspend modes including hibernate of all in all four modes make yourself sure, that ACPI_2.0 is activated in the BIOS, that the SWAP-partition is sized by around 2 GB and that all USB-devices like usb-memory-stick are plugged out (umounted, umount and unplugged). Now the green LED of the computer-tower is blinking for mainboards like ITX-220 (details see data-sheed). Envoke the system again by pressing the power-buttom of the computer tower. Now a password request out of the OpenGL-screensaver (also used for the case of screen-locking) is made, but only if activated within power-management of systemsettings.</B>
<BR><BR>
Here once again all <B>energy saving modes</B> (suspend modes) under &quot;Universal Linux 2010&quot; (backported system) in detail:<BR>
- blanked screen, readiness (passive) - dark blanked screen. Some power is already saved by this.<BR>
- locked screen - OpenGL-screensaver with user-password request - protection during all the (almost short kept) time, a user abandons the computer. Power is still consumpted, until power saving modes might get into effect.<BR>
- abandoned / suspended - The monitor is powered off (almost automatically after a some time set), but awakes again with the user activity like mouse-move, mouseclick or any keystroke. Saved power: 18 Watt monitor-power- consumption<BR>
- <B>hibernation</B> - the actual state gets saved into the SWAP-file, the computer seems to be &quot;powered off completely&quot; , while the BIOS blinks the green LED at the computer tower, but an awake resp. the backup of the state right before is possible by pressing the power-on/off-buttom of the computer-tower. After the awake, the user-password is requested to go on working with the computer in the state right before, if determined by the power-management of systemsettings; saved power: quit all 37 Watt.<BR>
- deep sleep - another kind of hibernation or similar to it, but the data is written onto the hard-drive resp. SSD. All internet connections (network manager) got closed after the awake in both last hibernation modes, so they have to build up again. 
<BR><BR>
The following terminal-command<BR>
sudo <B>rtcwake -m off -s 60</B><BR>
is well to test, if the hardware does support the &quot;fast boot&quot; (x86-hardware almost does, ARM-Rechner does it not always). Der Schalter &quot;-m&quot; bestimmt den ACPI-Modus. M&ouml;gliche Werte sind &quot;standby&quot;, &quot;mem&quot;, &quot;disk&quot; oder &quot;off&quot; (komplettes Ausschalten). Als zweiter Parameter ist hier &quot;-s&quot; (&quot;seconds&quot;) mit einer nachfolgenden Zeitangabe in Sekunden angegeben. Der obige Testbefehl wird also das System herunterfahren und nach einer Minute neu starten (60 Sekunden). Obwohl mit Schalter &quot;-t&quot; (&quot;time) auch exakte Zeitangaben m&ouml;glich ist, empfehlen wir, den geplanten Neustart immer mit Parameter &quot;-s&quot; anzugeben. Es ist wenig M&uuml;he, etwa zehn Stunden in Sekunden umzurechnen (10*3600=36 000).<BR>
Um Shutdown und Start zu automatisieren, kommt der Zeitplaner Cron ins Spiel: Nach dem Aufruf der Crontab-Editors mit <BR>
sudo crontab -e <BR>
schaltet folgender Eintrag <BR>
0 22 * * * /usr/sbin/rtcwake -m off -s 36000 <BR>
den Rechner t&auml;glich um 22:00 Uhr ab und startet ihn nach 36 000 Sekunden (zehn Stunden) wieder - exakt um 8:00 Uhr. <BR>
https://www.pcwelt.de/ratgeber/Linux-Systemstart-beschleunigen-so-geht-s-8259105.html
<BR><BR>
And... much happened: <font style="font-size: 12pt"><B>incredible 38 Gigabyte Traffic with our websites </B></font> last month April without making ads: Computer age without aging, no platform without fundamental IT security, so be welcome on the excurs for IT-security from Gooken on <B>Gooken.de</B> as a significant contribute to the successful interplay of informatics and society! 
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Now you can resign from things, that the world does not need! So everything is already authorized on DVD mdk2004 - except some special software like Nasa-moon-watch perhaps. After waiting quit the same long time, hardware fulfills important criteria too.  
<BR><BR>
<center><font style="font-size: 12pt">Starting Situation</font></center>
<BR><BR>
<font color="red">Whoever posseses a &quot;(mirolike) suneater&quot; (a computer), one theme can interest: <B>security.</B></font> &quot;Earlier so-called cybercriminals immobilized foreign calculators by computer-viruses, today the data thieves strip of whole bank accounts (by credit-card-betrayal, cracking of chips, debit entries, emails like scams, skumming, hacking and phishing&quot);, wrote the press even after the millennium change. Eyes Since George Orwell we discuss the phenomenon of the Big Brother as someone trying to find out our habits, in order to achieve the aims for his few interests groups. Can&#180;t enumerate all this: Spied offices and toilettes, cams in banks, in railway-stations and airports, right in front of petrol stations and bank automats: The eyes and ears of the big brother seem to be everywhere. Worlds get handicraft and abused (by censoring not fitting facts, opinions and views) .Trains were getting late, delrailed, while planes, cars and ships crashed or sank. Power supply systems had their blackouts, user konterminated by elements from platines and therefore got irrediated by the normal use of hardware, see postings form newsgroups cited and linked on our linkside. Significant preparations against thunder-storms were not made. Prices for power supply drifted. Votings were not encountered right. Opinions got suppressed and manipulated by positionings within search engines and legitimating rules, in some cases their listings took more into effect than prepunishment registers of criminal courts, unmanned airoplanes threatened with shooting us, corruption escalated. 
<BR><BR>
Once, in year 2003, SuSE Linux 7.3 appears including four printed out manuals: one reference, one for the programs, one for networks, but still the market share for Linux except for server reached less than 10 percent. Linux has got the right intellectual touch, many people do not like. The handbooks interest a lot, but did not explain, how to create and manage a really secure computer system. Upon the base of a software surface covering distirbution like mdv-Linux from year 2010 we dare to say it managed us to do so by this excurs resp. report. This mdv also makes it possibles to emulate other popular operating systems on the platform of powersaving but ergonomic fast working hardware. Even diversified games for this distribution understand to convice us very much, many of them are running upon OpenGL and SDL. Nice to notice, and what is interesting most: They and all Software of this distribution do really, really run! See how risky other operating systems had been constituted, for not many people did believe us before it all happened with them:
<BR><BR>
Focus:de, February 2015: <cite>&quot;Also unreal e-mails from betrayer and cyber-criminals are well known, it is a matter of a few seconds we click on such emails to make it happen. As soon as such email do open, we forbode this email not to be sent only to us. Dangerous viruses can take into effect (prevention: UNIX-Linux filesystems, spam-filter with a first virus-scanner like spamassassin and clamav prevent the propagation of viruses). The second next mistake is to open the atteachments and links too. Cyper-Criminals can rob millons of email-addresses by data-robbery. Inourdays plenty of time is spent online to be reachable so that we can get abused. The problem to protect the increasing amount of data becomes day by day more difficult  Fingerprints are left in emails, by online-shopping (registrations, tracking-scripts), whats-app-news and more.&quot;</cite>
<BR><BR>
<IMG SRC="images/niue-muenzen.jpg" align="left" alt="niue-muenzen" title="niue-muenzen">
<cite><font color="red" style="font-size: 12pt"><B>Viruses, trojans, worms, bots: 40 percent of the computers are &quot;zombies&quot;</B></font>, Focus, 02.03.2014<BR>
The amout is alarming: 40 percent of all PC in Germany are infectedt and can be remoted by cybercriminals. Once set free, malware opens the backdoorr for more abuse. How to protect: The amount of infected computer increased last year up to 40 percent, confirmed the Anti-Botnet-Support-Center of the internet community Eco. More than 220.000 computer with old browser-versions have been scanned. This forwards to trojans and viruses. In many cases, the first varmint opens the door for more infecitons, describes the community. &quot;Zombie-computers&quot; could be remoted. Infected so colled &quot;zombie-computers&quot; could be remoted by cybercriminals. &quot;Their systems are engaged as part of networks, that are abused by criminals for abuse like spam-transfer or denial-of-service-attacks, leading to die immense harms&quot;, described Markus Schaffrin, the ECO security expert. The result is alarming, said Eco. For more security, a well configured firewall and anti-virus-scanner remained essential. Focus explains, how you can find the best virus-scanner (we, Gooken, think it&#180;s clamav. This open sourced scanner is always checked well, as he can be installed on all popular operating systems).</cite>
<BR><BR>
<font color="green" style="font-size: 12pt"><B>Linux does not work? How you can solve every driver-problem</B></font>, PC-WELT.de, 04.07.2017<BR>
Linux runs on quit all PC and notebooks, but not each hardware periphery is recognized automatically. For new devices some problems are possible.<BR>
[...] Linux-distributions provide a wide hardware support and run on quit all PC. With SATA, ethernet, graphic-card and monitor as much as mouse and keyboard there are no problems at all awaiting. Those basic functions should be warranted each case.<BR>
Elder printer, scanner or tv-cards without driver for Windows 7, 8 or 10 can often be reused for Linux, but for very new or seldom devices sometimes there is no support pregiven. Before the installation tests for hardware-compatibility should be made.<BR>
Report in german language onle: https://www.pcwelt.de/ratgeber/So-bringen-Sie-Linux-trotz-Probleme-zum-Laufen-9789269.html
<BR><BR>
<font color="red" style="font-size: 12pt"><B>New nvidia-driver cause system-breakdowns</B></font>, PCWelt.de, 10.03.2016<BR>
Nvidia&#180;s new graphic card driver 364.47 cause serious hard problems for some PC-user. Concered user can do the following: http://www.pcwelt.de/news/Neue-Nvidia-Treiber-364.47-sorgen-fuer-Abstuerze-9943889.html .
<BR><BR>
Even a supergau in Fukoshima took place! Even have a look onto the section for <a class="noflag" href="links.php" target="mainsite"><font color="orange">&quot;News&amp;Links&quot;</font></a> from our left menu! If we follow such reports, we remind of emergancies, catastrophes and incalculatable payments. Since computer-technique seems to be part in almost everything (Na/ST), it and the companies behind seem to be quit <B>liable</B> for all, in person also see our linkside....! One question seems to be central:
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<center><font color="red" style="font-size: 12pt"><B>Do we reign computers, or do computer reign us?</B></font></center>
<BR><BR>
<center><B>Computing begins, where it ends</B></center>
<BR><BR>
<B>Green LED vs. red LED</B>: &quot;Yes, I think I&#180;am OK vs. yes, I think I am (the) stupid idiot (while our own system signs: &quot;...&quot; with one very short blinking point more or less periodically after the other one in around two up to ten seconds, asking the user back for &quot;any complaints?&quot;, reminding him for &quot;more activity, please...&quot; and saying &quot;I tell you...(heartbeats)&quot;), what shall not confound with the three LED at the top of the num-block the keyboard saying to the user &quot;Hi!&quot and &quot;bye&quot; resp. &quot;out of order&quot; (kernel-panic). All or something, that of course is not essential anymore in the case of touch-screens, and that&#180;s the naked truth. The own computer should be no disadvantage and not stand for riscs (red LED) without loosing his advantages and opportunites (green LED). Computer systems should not think about themselves, that they are stupid for all, by making themselves work with capacities reducing and control wresting self-checks for virus-scans, bot-processes, bugs (program-errors), processes of trojans and self-maintenances as the cause of their technical unjustifiance. This is almost self-signaled by the blinking orange or red LED of the computer-tower. A solution far from MS Windows is found since year 2004 resp. 2010: Gooken does present even more a (classical, quit everlasting) computer-system on lowest costs with quit all software almost in top-graphic running as secure and stable without much blinking of the red LED as computer can! In spite of red marked text and our linksite you become <font color="green" style="font-size:12pt">a witness of the eight wonder of the world named &quot;the almost 100% security bewaring computer running on lowest cost, where there is quit no software of rubriques of all kind missing&quot;, even not of games and TOP-games! Please do not forget to read our linksites from the left menu section &quot;News&amp;Links&quot; These linksites contribute to the right understanding of the work with the computer and, although we are going to provide the promised security by this excurs, many remaining threatenings from the outside are still awaiting! For security studies for MS Windows, please have a look upon News&amp;Links too.</font>
<BR><BR>
Very past installation phase, a system almost free from security-leaks, maintenance and administration will be provided. The only thing one has to do from time to time is, to install some actual updates.
<A name="EMULATION"></A>
<BR><BR>
<center><font style="font-size: 12pt">MS Windows &quot;Replacement&quot;: Windows-Emulation by virtualbox, VM, qemu, xen, mingw and wine (mdv2010), same for MAC-OSX by BasiliskII and Amiga by uae and so on</font></center>
<BR><BR>
Through wine, winecfg and at last playonlinux of mdv2010 emulation of software running on MS Windows (98, XP, 7, ... ) including MSOffice and Internet Explorer 6 up to actually 8 is not the problem anymore (although in our  opinion with the well-equipped mdv2010 we need much or anything of it...). More than 100 Top-Games: see our data sheed.
<BR><BR>
Frontend playonlinux presents software, that can be installed groupwise like accessories, development, education, games, graphics, internet, entertainment, office and others and offers the following software in detail beneath many other one to install: <BR>
MS Office, MS Word Viewer, Intenet Explorer, 6 up to (actually) 8, Google Picasa,  WowApp, 7-Zip, Ultimateencoder, Amazon Kindle, Azuon, Cadstd Lite, PDU Spy,  Photofiltre Studio X, Dreamweaver, Codeblocks, Flashplayer, Flash 8, Flash MX, Notepad++, Graph, Teach2000, Simultit, Rocket Reader, Huckel 95, Adobe Photoshop, Fireworks8, Microsoft Paint and more, more than hundred games see our data sheed!
<BR><BR>
playonlinux installs different Wine32 and Wine64 depending on the programms chosen.
<BR><BR>
It also offers installation of any setup.exe regardless from the download out of the internet, that means from harddrive or CD/DVD too.
<BR><BR>
Installation<BR>
Wine: How to use the Windows-Replacement in Linux, PCWelt.de, 08.11.2015<BR>
Wine is a a clone of the Windows-API with many windows-programs to run under Linux too. Whenever functioning, it is in opposite to virtualization (virtualbox, Xen, qemu, ... ) the more direct way: http://www.pcwelt.de/ratgeber/Wine-So-nutzen-Sie-Wine-als-Windows-Ersatz-9790018.html, zahlreiche Top-Games aus playonlinux siehe unter Datenblatt.
<BR><BR>
PCWelt also presents security tipps for the user, PCWelt.de, 03.08.2015 and 22.08.2015
<BR><BR>
<font color="green"><B>Create your VPN (private internet tunnel)</B></font><BR>
Most public WLAN-net are - as already told by name - public. Hacker, equipped even with only a few programs, can &quot;catch&quot; the traffiic from the next area. Although it is useful to provide more security by calling websites per https in the address-line of a browser, it is not the best solution. A private network (VPN) should be used, in order to provide an encrypted data-tunnel between your device and the internet. There do exist versions of such programs for free like &quot;Hide My Ass&quot;, &quot;Hotspot Shield&quot; and &quot;Tunnel Bear&quot;- a payed VPN belongs to the better alternatives (or use the real secure freeswan, strongswan, openvpn or openswan). The versions to pay like Hide My Ass cost 40 &euro; the year for example and protectis not only your PCs but also your mobile devices.  
<BR><BR>
libreswan (rpm): <cite>&quot;Libreswan is a free implementation of IPsec &amp; IKE for Linux. IPsec is the Internet Protocol Security and uses strong cryptography to provide both authentication and encryption services. These services allow you to build secure tunnels through untrusted networks. Everything passing through the untrusted net is encrypted by the ipsec gateway machine and decrypted by the gateway at the other end of the tunnel. The resulting tunnel is a virtual private network or VPN.<BR>
This package contains the daemons and userland tools for setting up Libreswan. To build KLIPS, see the kmod-libreswan.spec file. Libreswan also supports IKEv2 (RFC4309) and Secure Labeling. Libreswan is based on Openswan-2.6.38 which in turn is based on FreeS/WAN-2.04&quot;</cite>
<BR><BR>
<a href="http://www.gooken.de/" target="_top" title="Miro"><IMG SRC="images/suneater-min.jpg" alt="suneater_miro" align="left" border="0"></a>
You can use a virtual private network-client for free like OpenVPN (or Freeswan, Anm., die Red.), in order to connect to a VPN-service, where you have an account, so that you can visit the internet through an encrypted access. This is a good reason for VPN, but not the only one. <font color="red"><B>Maybe you do not want, that your internet provider surveys all your online-activities at home. Normally, if you go online, the provider can survey all of your activities.</B></font><font color="green"><B> By VPN your internet service provider can only see the connection to the VPN.</B></font> Besides from this VPN help you to bypass regional restrictions for websides like Amazon, Hulu, Netflix and BBC iPlayer. One example for a VPN-provider is the company IPredator from Schweden offering VPN-services for eight Dollar the month, keeping its connection to the famous torrent-tracking-site &quot;The Pirate Bay&quot;. IPredator promises not store any traffic data of their user. You can also use PGP-encryption, if you contact IPredator-support per mail. One more popular VPN-provider is Private Internet Access, that promises not to  protocol traffice data too. PIA costs 7 Dollar per month or 40 Dollar the whole year. PIA also helps to bypass reginal blocks in the USA, Canada, Great Britain and several countdries in continental europe. <font color="red"><B>Although VPN protects your privacy, provider of websites like Facebook and Google can protocol your internet-activites. The use of your anonymous-private-mode of your browser is not caring for complete anonymity, but it keeps websites from reading out your cookies and the histroy of your browser, in order to get more to know about you</B></font>. We are going to see, what we can do, comment by Gooken.
<BR><BR>
Howto configure and establish VPN-connections can be read here (in german language): http://pdf.zeit.de/digital/datenschutz/2013-01/serie-mein-digitaler-schutzschild-vpn-ipredator.pdf .
<BR><BR>
<B>The risk remains by the VPN-provider, as he knows the IP-address - so you have to convice him. This is the central disadvantage in opposite to Tor.</B> 
<BR><BR>
I2P is a decentral network connecting users, in order to make an point-to-point- (end to end-) encryption possible. It is still under development and provides an experimental additon to other methods for encryption or anonymization.<BR>
<BR><BR>
<cite>Tor is a connection-based low-latency anonymous communication system. This package provides the &quot;tor&quot; program, which serves as both a client and a relay node. Scripts will automatically create a "toruser" user and group, and set tor up to run as a daemon when the system is rebooted. Applications connect to the local Tor proxy using the SOCKS protocol. The local proxy chooses a path through a set of relays, in which each relay knows its predecessor and successor, but no others. Traffic flowing down the circuit is unwrapped by a symmetric key at each relay, which reveals the downstream relay. Warnings: Tor does no protocol cleaning. That means there is a danger that application protocols and associated programs can be induced to reveal information about the initiator. Tor depends on Privoxy and similar protocol cleaners to solve this problem. This is alpha code, and is even more likely than released code to have anonymity-spoiling bugs. The present network is very small -- this further reduces the strength of the anonymity provided. Tor is not presently suitable for high-stakes anonymity.</cite>, rpmfind.net about tor, 18.01.2016
<BR><BR>
Another example, why to resign from TOR is named by PCWelt.de:
<BR><BR>
<cite>&quot;In November last year the anonymizing-network <B>Tor</B> started his first spend campaign. With overwhelming success. Exact 205.874 US-Dollar (around 190.262 Euro) from 5265 different givers are taken by the project Tor during six weeks. With this amount of money, the Tor project is going to reduce the dependencies from the US-government, financing Tor of about 80 up to 90 percent. As the US security agencies try to infiltrate the tor-network, it makes sense Tor making more independent from USA. Alleged the US-policei FBI spent one million dollar to an explorer of the Carnegie Mellon University, in order to help the FBI, to intrude into the  anonymizing-network. The NSA is going to crack TOR too.&quot;</cite>, http://www.pcwelt.de/news/Erfolgreiche-Spendenkampagne-fuer-Anonymisierungs-Tool-Tor-9916676.html
<BR><BR>
<font color="red"><B>Tor - no absolute security</B></font>, heise.de, 30.08.2016<BR>
The anonymizing network like Tor left security leaks and access points: if many Tor-nodes gets observed, conclusions to the location as much as identity of a user can be drawn - and not only by institutes by law than NSA.  There are some tor-based virusses and malware on their way - probably seldom, but really existant, http://www.heise.de/download/product/tor-browser-40042 .
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">
<font color="green"><B>Protect the router</B></font><BR>
The most important connection to the internet for the everyday life is your router at home for the use of online banking and so on, where sensible data is transferred. So do not use ever the same passwords, especially not that of the router. For most secure home connection always use WPA2-encryption and random generated login-passwords out of at least 30 characters, that should be kept within a password-manager. One more report about router is following below at the end of step 1 of this excurs.
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><font color="red" style="font-size:12pt"><B>Security updates: Critical leaks in root-security in SD-WAN-routern of Cisco</B></font>, CHIP, 01.30.2021<BR>
Admins of Cisco-hard- and -Software should install the actual security patches. Otherwise attackers can attack the networks and execute malicious code, in oder to win the control over them.<BR>
https://www.trojaner-info.de/business-security/aktuell/sicherheitsupdates-kritische-root-luecken-in-sd-wan-routern-von-cisco.html
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<img src="images/haekchen.png" ALT="OK" align="left" border="0">
<font color="green"><B>Resign from Java (whenever possible)</B></font><BR>
Oracle&#180;s Java does not belong to the required software for PC-user for our relief. Java is full of lacks in security. Security experts postulate from Oracle the complete overworking of Java. January 2013 they advised all PC-user to deactivate Java as possible, that means except the cases where Java is needed. One should wholehearted attempt to delete Java from system completely and at once! This can be done for MS Windows by the system control. Nevertheless, if a webside requires Java, the recommend of installing actual Java software is not missing.  
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">
<font color="green"><B>Be careful with the password-recovery of mail accounts</B></font><BR>
Make hacker the life as hard as possible. Use different mail-accounts with different passwords kept in a password manager with hard to hack address names like &quot;myrec0v3ry_ZMf43yQKGA&#64;outlook.com&quot;. Then hacker can not hack in an easy way and especially not all passwords at once.
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">
<font color="green"><B>Do not use only antivirus-software but also anti-malware-scanner</B></font><BR>
Virus scanner alone do not cover and remove all malware. It is a good idea to use malware-scanner too.
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">
<font color="green"><B>Screen the webcam</B></font>
Times were known, malware sended word-documents all over to email-contacts. This can get even more and more worse, if computers are suited with webcams and microphones. Put adhensive tapes, maybe with paper between, over the lense of the webcam. Whenever the webcam is needed by the user, he just has to deduct it. 
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<A name="DATENBANK"></A>
<center><font style="font-size: 12pt">Databasis (SQL)</font></center>
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<img src="images/haekchen.png" ALT="OK" align="left" border="0">
Password-protection for MySQL after the login into MySQL by starting the daemon mysqld and entering &quot;mysql -h -localhost -u username -p&quot; in order to type into beloginging terminal:
<BR><BR>
<center><TABLE BORDER="1" bgcolor="#15fb9b" ><TR><TD><font color="black">grant usage on *.* to &#180;username&#180; identified by &#180;password-to-set&#180;;</font></TD></TR></TABLE></center> 
<BR><BR>
This method is advised as secure. Alternatively, but for some protocollings not such secure:
<BR><BR>
<center><TABLE BORDER="1" bgcolor="#15fb9b" ><TR><TD><font color="black">SET PASSWORD FOR &#180;username&#180; = PASSWORD(&#180;password-to-set&#180;);</font></TD></TR></TABLE></center> 
<BR><BR>
<font color="red"><B>The (own) computer should escape from the dark empire, here named by Miro&#180;s &quot;Suneater&quot;, but how?</B></font>
<BR><BR>Technical failures cause from human ones. &quot;The way is the target&quot;, means their leader Konfuzius. Gooken itself is a meeting place for the scientific based IT-Security since computer might run secure. Its excursion is introducing the security-concept without the accumulation of any costs for consultation, training, conversion and licenses. It does so by realizing a secure and standard company management database and an everlasting as possible, standard IT-Security-concept for your computer-system through all of companies (fields, mandators, master, departments, standard-processes, editor, printouts, diagrams, security) intergrating <a class="noflag" href="down.php#companymanagement" title="Company-Management" target="mainsite">Mycompanies</A> company management in PHP-MySQL standard with intergratable PHP-FCKEditor for text-fields, also all ready for WEB-2.0-and 3.0-technology, the determination of security levels, <a class="noflag" href="down.php" title="downloads" target="mainsite">computer-manual, (security-)commands, checklist and prototypes</A> in order to resign from scans from hard-disks as much as from the amount of essential updates and upgrades to none (!) at all as much as possible, a deep look into the work resp. code of search-engines like <a class="noflag" href="down.php#searchengine" title="Gooken" target="mainsite">Gooken</A>,  <a class="noflag" href="links.php" title="links" target="mainsite">&quot;News&amp;Links&quot;</A> especially for the friends of MS Windows to carry on <a class="noflag" href="down.php" title="downloads" target="mainsite">and more</A>. In comparison with other projects, those of Gooken do not only consist of an everlasting character, but also find an end to the very beginning! 
<IMG SRC="images/thewallfromchristo.jpg" ALIGN="RIGHT" title="Christo_The_Wall1" ALT="the_wall_by_christo" WIDTH="340pt" HEIGHT="280pt"><A name="THEORIE"></A>
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<center><font style="font-size: 12pt">Theory</font></center>
<BR><BR>
All this direct help online is offered to beware stable positions right before law and opposite fellow men. It is is realized by adjustments and downloads consisting of SQL through company.
management, pdf like the computer-manual with checklist and surface covering security-software for prevention, diagnosis and repair to solve the survival-request of computer-age with its central rating for computers completely concretisizing <B>the book &quot;Security in Information Technology&quot; second edition by Prof. Dr. Kersten, Oldenbourg-Hochschulverlag from 1995</B>. Therefore Gooken tries to contribute to the calm, troublefree enterprise! <font style="font-size: 12pt"><B>Quit all needs and security problems of the computer can be solved!</B></font> Gooken offers 
<a name="Sicherheitskonzepte"></A>
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Introduction-&quot;basics&quot; to reach the highes IT-security-level&quot; as possible, and a pdf containing also next step 2 to reach an enhanced IT-security-level, pdf system-(security-)commands and pdf checklist,  
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<A name="PROXY"></A>
<BR><BR>
<center><font style="font-size: 12pt">Anonymizing Proxyserver</font></center>
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surfing with the anonymizing base64-, rotate-13 URL- and SSL-encrypting <a class="noflag" href="down.php" title="Proxy" target="mainsite"><font color="black"><B>Proxy</B></font></a> and den base64, rotate13, nonssl <a class="noflag" href="http://web239.serverdrome.eu/webpry.php" title="Proxy" target="_top"><font color="orange">Proxy for free</font></a> (with restricted capacity for dowloads)  programmed by Abdullah Arif. In both cases, for payment as much as for free,  IP are not only exchanged, but also all kind of scripts including tracking-scripts beneath cookies get blocked, by choosing the option &quot;remove scripts&quot;. This is important to avoid methods like Canvas Fingerprinting, details see our &quot;online check&quot;. If there is no access for our free proxy, try https://www.vtunnel.com. 
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<font color="black"><B>Webdesign- and programming</B></font> in HTML, JavaScript, PHP, PHP-MySQL and MySQL
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<A name="GOOKEN"></A>
<center><font style="font-size: 12pt">Search engines</font></center>
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<a href="http://www.gooken.de/" target="_top" title="Miro"><IMG SRC="images/suneater-min.jpg" alt="suneater_miro" align="left" border="0"></a>
<font color="red"><i>Many search-engines tell us, that we can search secure, because they resign from storing the IP of their user. But since Edward Snowden june 2013 the fact is, 
that many search engines host on server within the USA, even those recommended by so called privacy protectors. Such search-engines have to refer to the Patriot Act and US-law and therefore have to serve the full access of US-authorities. So they can not offer protected privacy (even not, if they try. source: metager, year 2014).
<BR><BR>
German government and the EU-commission, Tagesschau, 21.05.2014: Mundt supports the demands of Bundeswirtschaftsminister Sigmar Gabriel postulating a hard reglementation and the annihilation  of the Google concern. Paris also postulates for harder rules. The minister and his french administration colleague Arnaud Montebourg postulted in a letter to sharpen the suggested conditions for  Google. Indeed the ministre from Berlin and Paris do not find the sympathy of the  EU-competition commissioner Joaquin Almunia signed by scepsis against the annihilation of Google. But all with Google is by far not obivious. It can not be exclude the commission following all the compaints against Google in further processes by law, explained Almunia at the same time.</i></font>
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<IMG SRC="images/trustrank-100-small.gif" align="left" alt="trustrank-100">
Instead the platform independent <a class="noflag" href="https://web239.serverdrome.eu/gooken" title="Gooken" target="_top"><font color="black"><B>Gooken</B></font></a> is a self-learning search-engine with SSL-support. Gooken was developed for answering still unanswered questions in conjunction with IT-security past our excurs with downloads as much as for any purpose. <font color="green"><B>You are searching completely anonymously, no click-registration by meta queried searchengines! Actually, no data are stored, neither your IP nor the user-agent-specification of your browser! Gooken resigns from tracking-scripts, participating in a web-advertisement net as much as from server-farms! You can open all websites anonymously.</B></font>
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<a class="noflag" href="http://www.webutation.info/go/review/gooken.de" title="webutation_Gooken" target="_top"><font color="green" style="font-size:12pt"><i>Open Website Reputation: Gooken 100/100</i></font></a>
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<a class="noflag" href="down.php" title="Downloads" target="mainsite"><font color="black"><B>downloads making Linux, what it proclaims to be: free from any intrusions, without any hacker and any trojan and therefore secure independent from most distribution and version: </B></font> Linfw3 - the unbeatable fortress with protection against insecure browser-plugins - the comfortable end of all hacker and trojan (for single user, client, server) - besides Klean, Rename-Manager, the (LAN-supporting, platform-independent) PHP-MySQL-library Bibliomaster, platform-independent PHP-MySQL company-management-database Mycompanies</a> and
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<font color="black"><B>a filterlist for the adblocker of the konqueror and other adblocker</B></font> from the Easylist and during the time collected entries 
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<font color="black"><B>Trials against small money for the attempt to improve your online-reputation within the internet on price at agreement</B></font>
<A name="COMPUTER"></A>
<BR><BR>
Fedora and CentOS (resp. ALT Linux) Updates, Linux for Security, and Top Seven by Susan Linton - Jan. 17, 2014Comments (0)<BR> 
Related Blog Posts<BR>
Microsoft Linux, Fedora 23 Beta a GO<BR>
Magical Mageia Review, Mint 17.3 Named Rosa<BR>
LinuxToday was another interesting day in the newfeeds, so much so I can&#1804;t pick just one. There were several headlines focusing on Fedora or CentOS (resp. ALT Linux) today. Linux.com has posted a top seven distro list for 2014 and Jack Wallen says CESG recommends Linux for security. Tha&#180;&#180;s not all either. First up today, Jack Wallen over at TechRepublic.com published an article discussing the results of the United Kingdom&#180;s Communications-Electronics Security Group (CESG) operating system security tests. The tests consisted of 12 categories of security focus such as Disk Encryption, Authentication, and Platform Integrity and Sandboxing. As if there was any question, Linux proved the most secure of all the desktop and mobile systems tested. So, be sure to check out Wallen&#180;s article for more detail and relevant links.
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<center><font style="font-size: 12pt">Operating Systems and covering well designed Software ready to start: after all those computer systems really one to work and game with (stable)! </font></center>
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<font color="black"><B>mdv on USB-memory-stick: Opensource from (bootable) DVD, (bootable) USB (-memory-stick and memory-cards), from DVD onto SSD and HDD</B></font>, <font color="green"><B>so take the - as we think - one time chance to avoid in future not only computer-techique but also all operating systems. This can be performed by the shell-script mandriva-seed, unetbootin and other programs.</B></font>:
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<font color="black"><B>mdv on DVD: from mdv-final for quit all devices - comuter-final, computing has right begun, where it ended: Opensource-2010-FINAL, secure, easy to handle, but most comfortable Linux fullfilling</B></font><font color="green"><B>FSH 2.3 (Filesystem Hierarchy Standard) and ISO-standard-LSB 4.0</B></font><font color="black"><B>, with 65 GB (15 DVD) + Fedore rpm + unlimited software from see our data-sheed (left menu) also recommended by prism.break.org, <i>stable and secure</i> from DVD onto your SSD (and/or harddrive)</B></font> with lifetime installation-support,  fc-SuSE-mdv: We also offer complex as much as the mdv2010 already updated, stable and secure Linux-distribution powerpack+final version mdv2010.0 from year 2010 (x86_64, 64-bit, optionally MAC based (&quot;NSA-&quot;)Tomoyo-Linux by NTT DATA Corporation, Japan) with driver-comfortable kernel 2.6.31 (2.6-final resp. Knoppix 2010 like mdv-2010-Kernel 2.6.33-7-2, 2.6.39 (with allow-discards-support for FSE and FDE and patches up to actual date from see in our section for updates) or kernel-5.4.110 (pclos/PCLinuxOS) with mkinitrd (pclos, rosa, mga2), nash (pclos, rosa, mga2), dracut (mga6: version 044, el6: version 004 (leads into manual LUKS-password request even in the case of existing password-key-file!, mdv2011: version 008)) and glibc (el8, pclos), kernel-rsbac (hardened), RFC-rules bewaring methods for encryption, Firefox 3.6.17 you can update to an actual version like Firefox ESR, patched bash, LUKS/dm-crypt (cryptsetup) with most driver for desktop-computer, all postscript-based printer, PPD from manufacturer or diver-CD,  alternatively see compatibilty-list and foomatic-, PPD- and cups-filter-driver and cupsddk (cups driver development kit) from these DVD or <a class="noflag" href="http://www.linuxfoundation.org/collaborate/workgroups/openprinting" target="_top" title="printer_driver">Linuxfoundation, openprinting.org</a> and powerpack+ from year 2007 (i586, 32-bit), many graphic-card-drivers including IPG-driver intel, IGP-openchrome and IGP-unichrome3D, ati-, nvidia- and the universal VESA-standard-graphiccard-driver and other ones; each version out of one <B>installation-DVD (1)</B> for the binary-packages (rpm), <B>one DVD for more mdv-2010-software-packages, most already known from mdk10.1 (2004) (2)</B> including Debian Linux paket-manager (apt, dpkg, alien), debbuild (el6), debmirror (el6) more drivers and software listed in the data sheed below and one DVD for the belonging (updated) <B>sourcecode-packages (3)</B>: <A class="noflag" href="#DISTRO" title="data_sheed"><B>3 DVD Linux total, stable and secure mdv2010.0-final (x86_64) or mdv2007-powerpack+(i586), 3 &times; 4,4 GB comfortable, most stable and secure Linux total, free from shipping costs, for 20 &euro; 24h-livetime-support from fr2.rpmfind.net and sources or installation-DVD mdv2010.0 from http://linuxisos.de for 8 &euro; (2013)</B></A>, or
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<font color="green" style="font-size:12pt"><B>mdv from SSD: 65 GB mdv-software (15 DVD for mdv2010 out of mdv2010.0, updates, mdv2010.1, mdv2010.2  including all GLSA-updates except KDE and 2014 patched bash and openSSL 1.0.2, Firefox ESR ) extract see data sheed plus source-rpm from your sent-in at least 120GB sized SSD, FSE (FDE) of all partitions</B></font>: root (around 65 GB) , (by keyfile from the root-partition automounted) home (around 25 GB), SWAP (around 3GB) and one more partition (around 30GB), 24h-livetime-support from fr2.rpmfind.net or
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After the installation of kernel-4.19 (pclos), lookout for the requirements and install missing ones like kmod (pclos): &quot;rpm -qi --requires kernel-4.19....&quot;.
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<B>mdv out of the internet: mdv2010-packages for free from:  http://fr2.rpmfind.net/linux/RPM/mandriva/2010.0/x86_64/index.html, http://fr2.rpmfind.net/linux/RPM/mandriva/2010.1/x86_64/index.html and, http://fr2.rpmfind.net/linux/RPM/mandriva/2010.2/x86_64/index.html</B>  24h-livetime-support from fr2.rpmfind.net and sources, plus quit all Linux-tarballs,
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 kernel-5.4.110 (PC-LinuxOS) with mkinitrd (pclos, rosa, mga2), nash (pclos, rosa, mga2), dracut (mga6, version 044, el6: version 004 (leads into manual LUKS-password request even in the case of existing password-key-file!, mdv2011: version 008)) and glibc (el8, pclos) resp. kernel-desktop-2.6.39 (mdv-2011-standard-kernel), kernel-server-2.6.39 (standard-kernel with patches up to now, year 2016, from see our section for updates), kernel-linus-2.6.31 (original kernel from Linus Tovalds), kernel-rsbac (hardened kernel), kernel-uml (protected usermode-kernel), xen-Kernel (XEN-virtual machines), lirc-kernel (infrared-driver), kernel-tmb (laptop), kqemu-kernel (kquemu-driver for the standard-kernel), vpnclient-kernel (vpnc-driver), fglrx-kernel (nvidia-driver), em8300-kernel, broadcom-wl-kernel, hfsmodem-kernel, madwifi-kernel (WLAN-driver), libafs-kernel, lzma-kernel, kernel-rt (SMP-onboard-Realttek/Atheros-LAN-BIOS-Chip with an activatable LAN-ROM), fusion-kernel (fusion-driver), kernel-netbook, kernel-openvz (SMP: multiprocessor-kernel), libafs-kernel, kernel-kerrighed (kerrighed-Support), obencbm-kernel, psb-kernel, actuator-kernel (actuator-driver), lzma-kernel (lzma-driver), m560x-kernel, broadcom-wl-kernel, nvidia-current-kernel, nvidia96xx-kernel, nvidia173-kernel, netfilter-rtsp-kernel, fortune-kernel, vhba-kernel (vhba-driver), em8300-kernel, r5u870-kernel,  r5u870-kernel-laptop, squashfs-lzma-kernel, vboxadditions-kernel, virtualbox-kernel, actual Kernel-3.X.X (from fr2.rpmfind.net or kernel.org), ...
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<B>Notice, that in order to keep transparency and other aspects, the system boot does not in main follow the kernel with its many firmware, but the runlevel-init-scripts out of /etc/rc.runlevel0-6 out of tarball resp. rpm named initscripts and util-linux, almost steered by the script named init.</B>
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uml-kernel: User-Mode-Linux is a safe, secure way of running Linux versions and Linux processes. Run buggy software, experiment with new Linux kernels or distributions and poke around in the internals of Linux, all without risking your main Linux setup. User-Mode Linux gives you a virtual machine that may have more hardware and software virtual resources than your actual, physical computer. Disk storage for the virtual machine is entirely contained inside a single file on your physical machine. You can assign your virtual machine only the hardware access you want it to have. With properly limited access, nothing you do on the virtual machine can change or damage your real computer, or its software; you need an uml-kernel and an adequate root-fs-filesystem of about 1GB from http://uml.devloop.org.uk/; start: #./smb-kernel-name ubda=name-of-root_fs rw mem=256m; stop: #halt.
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The Filesystem Hierarchy Standard (<font color="green">FHS</font>) defines the directory structure and directory contents in Unix and Unix-like operating systems, maintained by the Linux Foundation. The current version is 2.3, announced on 29 January 2004.[1]
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Only some Linux-distributions fullfill the Filesystem Hierarchy Standard and <font color="green">LSB standard</font>. The Linux Standard Base (LSB) itself is a joint project by several Linux distributions under the organizational structure of the Linux Foundation to standardize the software system structure, including the filesystem hierarchy used in the GNU/Linux operating system. The LSB is based on the POSIX specification, the Single UNIX Specification, and several other open standards, but extends them in certain areas. According to the LSB, the goal of the LSB is to develop and promote a set of open standards that will increase compatibility among Linux distributions and enable software applications to run on any compliant system even in binary form. In addition, the LSB will help coordinate efforts to recruit software vendors to port and write products for Linux Operating Systems. The LSB is registered as an official ISO standard. Linux Standard Base aims to make binaries portable.
<A name="SCHOENHEIT"></A>
<BR><BR>
mdv2010.0, LSB-version by after typing in the command 
<BR><BR>
<center><TABLE BORDER="1" bgcolor="#15fb9b"><TR><TD><font color="black">lsb_release -a</font></TD></TR></TABLE></center>
<BR>
LSB Version:    <font color="green">lsb-4.0-64...</font><BR>
Distributor ID: MandrivaLinux<BR>
Description:    Mandriva Linux 2010.2<BR>
Release:        2010.2<BR>
Codename:  Adelie (Napoleon, annotation by the red.)
<BR><BR>
<center><IMG SRC="images/machsgut3.jpg" ALT="Intro" align="middle" width="90%"></center>
<BR><BR>
With mdv2010 software is not only covering, it also can be displayed advantageous and interesting:
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Window-administration (die h&auml;lt, was sie verspricht): always-in-foreground, always-in-background, remember, force of positioning and seizing function and so on,  fringes, work surface assignment, window-heaver, men&uuml; for behaviors, screen-edges, window-effects, changes of windows, actions, activation, spezific settings, ...
<BR><BR>
Effects for the desktop: kiba-dock, 3D-window-galery, 3D-windows-stack, fade in and out for the system-login and -logout, cube, preview (of minimized windows), showcase with miniaturized images for opened windows, translucency, transparency, dimming, zoom, auto-reticle for centering, gliding, magnifier, shadow, wonderlamp (during the maximizment of minimized windows), wave, ... on the base of composite: spotlighter (justable desktop-spotlight), ardesia (desktop-sketching), curtain (curtain to move on the desktop from one side to the other)...; like plasmoids without markable loss of performance for active processes of mdv2010.
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<center><IMG SRC="images/mdv2010-preview-windows.jpg" title="preview_mdv2010" ALT="desktop_effects" align="middle"></center>
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Key-strokes for KDE-desktop-effects: STRG+F9 or mouse pointer into upper left corner: preview with mini-pictures of opened windows, ALT+TAB: window change, STRG+ALT+Scrollrad: window-transparency, STRG+Arrows: cube-rotation of the workplaces 
<BR><BR>
Plasmoids resp. plasma (applets) for the desktop and the controlbar (please notice, that in differnence to mdv2010-rpm-packages actually not all of them do function, so we have to wait, and that some of them get their information 
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Desktop right upper corner with halfmoon-plasmoid: toolbox out of add control-line, configuraiton of key shortcuts, adjustment for the active-directory-perspective, enlargement/declinement of fonts and symbols and unlocking of the (plasmoid-)miniprograms 
<BR><BR>
<center><IMG SRC="images/plasmoids.jpg" alt="mdv-plasmoids" align="middle" title="mdv2010-plasmoids"></center>
<BR><BR>
to present out of the internet): Daisy (free program choice within rings or bars), Lancelot (desktop-menu), timezones and weather,  birthday-reminder, calculator, widget-dashboard, system-monitoring, multiple rowed fast-loader (more-rowed compressing collector for icons with optional mini-pull-down-(up-)menu), unit-conversion, LCD-weather-station, weather forecast, wordclock with timezones, accu-check, image frame, comic, egg-clock, jumping ball, colorchoosing stick, calculator, moon phases, zoom, social desktop, ToDo-lists, remember the milk, system-monitor, guitar-tuner, image-preview, widget-dashboard, birthday-reminder, flickr, language-translator, sun-system, fishtank, DVB-signal-meter, newsticker, Mountoid, Bundesliga, Facebook, Flickr, bsun (wandernde Sonne), FrustML resp. (Mensch-&Auml;rger-Dich-Nicht), Fancy Tasks (quickstarter similar to cairo-dock), Koala (similar to Tamagocchi), Astrocalendar, Plasmio (SMS), daisy (desktop-icons in a cricle), 15 stones,Tomatoid, egg-clock, spell verification, blackboard, WorkContext (nepomuk) and much more ...
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Gadgets, Apps-Installer, ...<BR>
<BR><BR>
<IMG SRC="images/gai-bgswitcher-0.3.jpg" alt="gai-bgswitcher" align="left" title="gai-bgswichter"><IMG SRC="images/tvib4.png" alt="tvib4" align="left" title="tvib4"><IMG SRC="images/leds1.gif" alt="leds1" align="left" title="leds1"><IMG SRC="images/leds2.gif" alt="leds2" align="left" title="leds2"><IMG SRC="images/pager1.gif" alt="pager1" align="left" title="pager1"><IMG SRC="images/sun1.gif" alt="sun1" align="left" title="gai-sun"><IMG SRC="images/va5.gif" alt="va5" align="left" title="va5"><IMG SRC="images/horizontal.png" alt="horizontal" align="left" title="horizontal"><IMG SRC="images/vertical.png" alt="vertical" align="left" title="vertical"><IMG SRC="images/logicharge.png" alt="logicharge" align="left" title="logicharge"><IMG SRC="images/othello.png" alt="othello" align="left" title="Othello"><IMG SRC="images/gi8k_dock_c.png" alt="gi8k_dock" align="left" title="gi8k_dock"><IMG SRC="images/sherman1.png" alt="sherman1" align="left" title="sherman1"><IMG SRC="images/sherman2.png" alt="sherman2" align="left" title="sherman2"><IMG SRC="images/sherman3.png" alt="vertical" align="left" title="sherman3"><IMG SRC="images/signal_medium.png" alt="gwlan" align="left" title="gwlan"><IMG SRC="images/bc1.png" alt="bc1" align="left" title="bc1"><IMG SRC="images/bc2.png" alt="bc2" align="left" title="bc2"><IMG SRC="images/album1.png" alt="album1" align="left" title="album1"><IMG SRC="images/album2.png" alt="album2" align="left" title="album2"><IMG SRC="images/connected.png" alt="connected" align="left" title="connected"><IMG SRC="images/pal1.gif" alt="pal1" align="left" title="pal1"><IMG SRC="images/pal2.gif" alt="pal2" align="left" title="pal2"><IMG SRC="images/pal3.gif" alt="pal3" align="left" title="pal3"><IMG SRC="images/fortune.jpg" alt="fortune" align="left" title="fortune"><BR>
<B>Gai</B>, The General Applet Interface Library von http://fr2.rpmfind.net oder http://gai.sourceforge.net : gai-pal, gai-album, gai-bgswitcher, gai-blobs, gai-clock, gai-mailcounter, gai-nebulus, gai-sun, gai-othello, gai-pager, gai-terrain, gai-visual-audio, gi8k, gwlan, vpn, bluecombo, FishTime, shermans-aquarium, TV in a box (tvib), usermon, ...
<BR><BR><BR><BR>
<IMG SRC="images/cairo-dock-2.2.jpg" alt="Cairo-Dock" align="left" title="Cairo-Dock">
Cairo-Dock from http://fr2.rpmfind.net or http://www.glx-dock.org/
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>krunner: KDE Semantic desktop search per singe mouseclick</B> on the base of gingko resp. akonadi and nepomuk and so on (all upon MySQL) by direct text-search like Cortana for MS Windows, ideal per mouseclick from the taskline or out of the KDE-start-menu, in order to search for names, database entries of all kind, textfiles, audios, images, videos, e-mail, news (Usenet), command execution, date and time, desktop-sessions (user exchange), kopete-contacts, contacts from kontact, webbrowser-history, konqueror-sessions, bookmarks (to find and envoke), units-converter, media playing, nepomuk (semantic search), locations (open files and addresses, ginkgo resp. semantic view during the saving of documents and other files), (opened and closed) windows and work areas (and their includes), plasma-desktop (interaction with the plasma-shell), TechBase (search within the KDE-TechBase), Wikipedia (searching in Wikipedia), Wikitravel (searching in Wikitravel), dictionary, recent documents, devices, kate-sessions, kget (links to download-manager kget), konsole-sessions,  language translator, special chars (creates special chars) and so on: krunner (el6, ..., mdv) (or press ALT+F2)
<BR><BR>
rpm-description: <cite>&quot;Ginkgo (KDE (mdv2010.2, mga, rosa) is a graphical front-end for managing data semantically. Ginkgo lets you create and explore links between your personal data such as e-mails, contacts, files, Web pages. It harnesses the Nepomuk framework.&quot;</cite>
<BR><BR>
Start ginkgo (KDE (mdv, mga)): Click upon a directory or file -&gt, context menu -&gt; &quot;Annotate&quot; (context menu of KDE (mdv2010.2) -&gt; Ginkgo: data record with different text fields<BR>
For KDE (el6, OpenSuSE-11.2 4.4.4, 4.4.11) ginkgo does not function, but clicking upon &quot;semantic view&quot; during the saving of documents and files is a good alternative, as it opens the same text-input-fields like ginkgo.
<BR><BR>
Now you might want to click onto the pliers symbol (settings) and modules, in order to deactivate Wikipedia, Wikitravel and the Google language translator.
<BR><BR>
[SOLVED by Gooken, 21.10.2016: drkonqi: One or more <B>akonadi_resource</B> do not work or cannot be found]<BR>
At first, lookout for akonadi (el6) installed (rpm -qi akonadi).<BR>
There are three rpm-packages full of akonadi_resources like ical, birthdays, kcal, knut, kolabproxy, localbookmarks, mbox, microblog, nntp, notes, vcard, vcarddir, nepomuktag, strigi, kabc, kcal and imap: akonadi-kde (mdv2010.2) and kdepim-runtime (el6) with kdepim-runtime-libs (el6).<BR>
Now enpack akonadi-kde (mdv2010.2) and copy the not working akonadi-resources, that can be found in rpm&#180;s usr/bin/ to /usr/bin.<BR> 
The other direction from kdepim-runtime (el6) to akonadi-kde (mdv2010.2) might be the correct one in some cases too.<BR>
If you want to start nepomuk-semantic-desktop-search (krunner):<BR>
1 eventually start the strigidaemon: /usr/bin/strigidaemon&amp;<BR>
2 start desktopsearch-KDE-control-modul ( systemsettings or krunner:enter &quot;nepomuk&quot;, in order to select it ) -&gt; 3 select files to index / Dateiindizierung (Verzeichnisse ausw&auml;hlen) -&gt; 4 activate both, nepomuk and strigi / Nepomuk-Semantik-Dienste und Strigi-Datei-Indexer zugleich aktivieren.<BR>
3 If the error message ( like &quot;akonadi_ical_resource can not be executed successfully&quot; ) still appears, start akonaditray and remove the belonging resource out of the resource-listing. Many resource can be removed, but maildis, maildir and mailtrans are always needed for kmail.  
<BR><BR>
<IMG SRC="images/mdv-screenlets.jpg" alt="mdv-screenlets" align="left" title="mdv2010-screenlets">
Desktop-Screenlets, image: GUI-Screenlet-administration with more than 100 screenlets additionaly downloadable ones and screenlet-daemon, screenlet in the fore- and background, scalable size, widget-attribute, more attributes like: growing flower ( to give some water from time to time), slideshow, pager, control (to add more screenlets), radio, meter, stocks, speech, sensors, ringssensors, ruler, convert, example of howto create a screenlet,  copystack, clear weather von weather.com, ...
<BR><BR>
For more details see the data sheed from left menu.
<BR><BR>
</div>
<div class="smallgreen"><i>&quot;4.65 from 5 stars are the results of the average voting of a test from year 2014 for Mandriva based upon 204 meanings of customers from <a class="noflag" href="http://www.erfahrungen.com/mit/Mandriva" target="mainsite" title="experiences"><B>Erfahrungen.com</B></a> investigates regulary such votings from all sources out of the internet, that are carefully read out by hand and stochastic methods.&quot;</i></div>
<div class="normaltext">
<BR><BR>
<IMG SRC="images/n_metisse_mandriva.jpg" alt="Metisse" title="Metisse" align="left" border="0">
<cite><font color="green"><B>Mandriva Metisse</B></font> takes 3D to a New Level, http://cybernetnews.com/mandriva-metisse-linux-takes-3d-to-a-new-level/<BR>
This morning I&#180;ve been watching videos of the Mandriva Metisse Linux that, in my opinion, puts some amazing 3D features at your fingertips. All of this XGL and 3D stuff is often shrugged off as merely being eye candy, but there are four video demonstrations that really show the usability that these features can really offer. I always thought that openSUSE Linux was always the furthest advanced version of Linux since they often implement the latest technology. However, Mandriva seems to be taking that crown away, and I have really considered switching to it as my primary version of Linux that I use. I like the look and feel of their operating system, and it is obvious that they are exploring new ways to make it the best it can be.
Download Mandriva Metisse<BR>
Thanks for the tip Chris!</cite><BR>
<BR><BR>
Convince yourself: The quit short and many years overworked errata-list of the comfortable mdv2010.0 can be directly obtained from <a class="noflag" href="http://wiki.mandriva.com/de/2010.0_Errata"><B>Mandriva Errata 2010.0</B></a>. Not all of the mentioned problems there have to be solved. With mdv2007 and mdv2010 the time has come to install many, if not all, packages of this distribution and maybe more tarballs at once on the same SSD resp. harddisc instead of, to go sure, a few ones only as generally recommended by institutes like BIS.
<BR><BR>
The address of Mandriva is not missing on mandriva&#180;s homepage.
<BR><BR>
<address>
Mandriva S.A. (prev. Mandrake), Paris, St. Etienne, Frankreich, Tel...., email-addresses... ( founder: Gael Duval, 70 persons employed )
</address>
<BR><BR>
<cite>&quot;Mandriva Linux the brainchild of Gael Duval, who wanted to focus on ease of use for new users. Duval became the co-founder of Mandrakesoft&quot;.</cite>  Most packages origin in Fedora (but I knew a distribution of Fedora on DVD from the same year 2010 remaining quit scanty in comparison). 
<BR><BR>
<IMG SRC="images/systemabschnittkontrollleiste.jpg" title="Systemabschnitt-Kontrollleiste" alt="Tray" align="left" border="0">Abb.: System tray (plasmoid) out of Krandr (screen resolution), kmix, Klipper, parcellite (additional configuration of klipper), NetworkManager, Stardict, USB-connections and encrypted partitions, kgpg, korganizer (calender and. dating planner with reminder function), printer-applet (printer jobs), nepomuk (semantic search), i - information for system messages by kwrited (actually not started, that means still without: knotes or tomboy, tvbrowser, ...), clock with date and calendar and the fast screenlock- and poweron-off-plasmoid; enfastened load of the tray after the deinstallation of interfering draksnapshot<BR>
</div>
<div class="smallgreen"><i>&quot;Mandriva Linux 2010 - perhaps <B>The Best Linux Release All Year</B> - Mandriva Linux 2010 was recently released and brings lots of nice improvements to an already nice system. Mandriva has a long and distinguished history in the Linux distribution arena. They began over a decade ago using Red Hat as their base and quickly became the preferred choice of the new Linux user. This release hopes to offer some amenities to appeal to users of newer trends in technology such as semantic desktop and netbook support. The Mandriva Linux installer sets the standard in user-friendly Linux installers. For those familiar with Mandriva this release brings some great improvements. The best two so far have been the increased stability and performance. Mandriva may have had a reputation for being a bit crashy in the past, but it appears those days are gone. In the several days since a fresh install only one application crash has occurred here, and this application is known to be unstable across distributions. This new-found stability comes with even better speed as well. Not only does Mandriva boot quicker (speedboot: kernel-parameter that can be set in /boot/grub/menu.lst or /etc/lilo.conf, speedboot=yes), but desktop performance has improved noticeably. Applications open and function faster, including the two heavyweights OpenOffice.org and Firefox. There is virtually no graphic artifacting and redraws are immediate. In addition, the 2010 graphics are just beautiful (source: http://www.makeuseof.com/tag/mandriva-linux-2010-perhaps-the-best-linux-release-all-year/).</i></div>
<div class="normaltext">
<BR><BR>
<B>mdv2010 enpossibles to choose any design and style out of desktop, appearance and desktop-design-details from systemsettings and gnome-control-center - self mades as much as pregiven ones.</B> A screen covering bootsplash can appear right up at the beginning when powered on using grub or escpecially grub2. Color-schemes can be imported like the one from the CD of the monitor-manufacturer and there are a lot of emojis. Addtionally plasmoids and many ressources-saving 3D-deskop-effects can enrich the desktop.  With compiz, the deskop-workplaces are ordered  cube or metisse, while the desktop-background can be any wallpaper, slide-show, global map, weather map, mandelbrot and so on as much an image on the fly. Especially OpenGL, fast direct-rendering, SDL and pulseaudio guarant the video- and audio-processing. Mandriva&#180;s center of gravity lies together with the up to year 2060 actualizing Scientifclinux (sl6, el6) alias CentOS 6.7 (el6) and 6.7 (el7) in the extended hardware-support of our days as much as in future.
<BR><BR>
Nevertheless keep an actual mirrored 1:1-backup on another media during the installation! After all the installation, mdv2010 is running fine.
<BR>
Mandriva for free: <a class="noflag" href="https://openmandriva.org/en/download_lx" title="Mandriva_Lx" target="_blank">Mandriva Lx 2014 1,6GB free download</a>. Notice, that we would like to keep mdv2010. Therefore we did not test this Mandriva-distribution!
<BR><BR>
<center><IMG SRC="images/rpmdrake.jpg" title="rpmdrake" align="middle" alt="rpmdrake"></center>
<BR><BR>
Bootstrap of mdv2010 (creates) a basic <B>Debian</B> system: debootstrap is used to create a Debian base system from scratch without requiring the availability of alien, dpkg with debbuild and debmirror and/or apt. Notice, that in comparison with package manager of mdv2010, those off Debian 2010 like aptitude and synapitic do consist of errors, error-messages, breakdowns and bad overviews. It does this by downloading .deb files from a mirror site, and carefully unpacking them into a directory which can eventually be chrooted into (although we recommended to forbid this command). Debian is also supported by dpkg, apt, dselect, dash, ..., but with mdv2010 there seems to be not much Debian software missed, see http://fr2.rpmfind.net/linux/RPM/mandriva/2010.0/x86_64/. The coloured out listings of Mageia Cauldron - and Mandriva-rpm to select is most satisfying on http://fr2.rpmfind.net.
<BR><BR>
<a class="noflag" href="webdesign.php" target="mainsite" title="order"><font color="black"><B>Mandriva-One (mdv2010.2-final, i586) direct bootable from your USB-memory-stick</B></font>, USB 2.0 and higher</A>. Harddrive and SSD do remain not only unused, but can also be used for installation.
<BR><BR>
Linux on your USB-memory-stick: 
<BR><BR>
<B>with a free partition of at least 2 GB or unformatted</B> for 64- and 32-Bit-CPU, mdv-fundament, optional installation onto your harddrive resp. SSD, kernel 2.6.33, grub (with a optional md5-encrypted password-protection for each bootable dracut resp. kernel and memory check by memtest) and lilo (boot-manager, especially for kernel &lt; 2.6.39), Firefox 3.6.13 including the security-addons we recommend and privoxy, KDE 4.4.5, Dolphin 4.4.5, Konqueror 4.4.5, Kontact with kmail and bogofilter, clamav, Korganizer, OpenOffice, packet-manager drakrpm, rpm, gurpmi and urpmi, drakconf, gparted/parted (for changing the partition-size even on USB-stick), software for repair, mplayer  (i chose video: X11 (XImage/Shm) and audio: sdl SDLib audio output), mplayer-codecs, mplayer-codecs-extra, mplayerplugin, amarok, image viewer, gimp, gcc, gcc-c++, kwrite, fsck, rkhunter and chkrootkit, xskat, pysol, gnuchess and eboard with crafty (chess), shell-shock resident bash, bash-completion, konsole, xterm, many repair-functions and so on, mdv-i586-rpm-packages OR
<BR><BR>
of <font color="black"><B>at least 6 GB free partition or unformatted</B></font> 5.5GB more mdv2010-software from installation-DVD out of all rubrics like gparted, system-monitors, system-tools and more programs for repair, wine and qemu (emulation), k3b and brasero, xscanimage, xsane, tesseract, gocr, cups, xine, totem, flphoto, gtkam, tvtime, zapping, dvbtune, jikes, kino, audacity, supertux, toppler, rocksndiamonds, ....
<BR><BR>
both free from porto the way back to you. Therefore you just have to put your USB-stick and 10&euro; protection-fee into an envelope to send it to our address, see <a class="noflag" href="down.php#impressum" target="mainsite" title="address">impressum</a>. Before your order this, please test your BIOS, if it supports the booting with USB-storage-media (BIOS-boot-sequence and/or keys to determine the boot-sequence like F8), username: user and root, password: mandrivaone. 
<BR><BR>
Reader discussion on netzpolitik.org, Opensource disconnect vs. proprietary Ghostery<BR>
<cite>chromax 29. JUN 2015 &#64; 20:42<BR>
Where do you know, if OpenSource-code refers to the compiled one? Still missing security…<BR>
Antworten<BR>
CrX 29. JUN 2015 &#64; 22:06<BR>   
This question is of academic nature. Practitioner interest in the verficiation (indentically) of executable files and source code.<BR>
Therefore oneself compiles the Open-Source, if confident with it.<BR>
Antworten<BR>
skoam 24. SEP 2015 &#64; 10:09</cite><BR>
<font color="green"><B>This is immer the right question and an answer does already exist: Open Source can be compiled, in order to compare the build with the receipt executbale binary code. If the hash-sums (md5sum/shasum/file sizes) do not agree (that means differing), the executable code deals with code not listed by its source.</B></font>
<BR><BR>
Why UNIX/Linux? Because I know it is opensource and the kind of its (almost german) programmers behind (book from Prof. Kersten and books from some other authors). <BR>
<B>It always must be caviar? Tell us about any more secure distribution ever!</B>
<BR><BR>
<font color="black" style="font-size:12pt"><B>Gentoo Linux 12.1 2012 Live-DVD</B></font> (x86_64 for 32 and 64 bit- and AMD64 forr 64 Bit-CPU) from <A class="noflag" href="http://www.gentoo.org/news/20120401-livedvd.xml" target="_top">Gentoo.org</A>, burnt 3,3 GiB ISO. The so called <B>meta-operating-system</B> Gentoo is recommended by prism-break.org. It is bootable from DVD as much as installabe onto SSD/HDD by open-source-packages to compile in. You can also order already DVD-burnt Gentoo 12.1 AMD64 from us free from postage-fees for 10 &euro;
<BR><BR>
<center><B>Smartphones</B></center>
<BR><BR>
<font color="green"><B>In comparison with IPhone 6: This smartphone can something like no other one</B></font>, Focus, 01.11.2014<BR>
For 12 US-Dollar only, it rivals with  Apple or Samsung - with uncommon features. &quot;Smartphone-the drug is real like everywhere. This handy does not pig up your dates, does not irritate you during concerts, does not disturb you in the cinema and cleans up the passways. The solutiion is found. With this promise, a user names quot;The NoPhone Team&quot; of the Crowdfunding-platform Kickstarter his project. It is a handy like no other one and can do like no smartphone can. Namely... nothing. Perfect for the pockets of the trousers:  its wireless design made of flexible plastic feels cool and real. &quot;Just pull it out and hold it.&quot; The most signifcatn features are named by the manufacturers: no accu, no nerved updates, splinter-free, water-proofed. This project has it success: the No-Phone-Team wanted to collect 5.000 Dollar but accounted 18.000. With this phone, that can neither phone nor write SMS nor surf in the internet, should cost twelf Dollar. There is another &quot;NoPhone&quot;-version with selfie-function. This model has a mirror in its display and is distributed in the words: &quot;Show your friends your newest selfie, if they stand directly behind you.&quot;
<BR><BR>
<font color="red"><B>We do not believe much in honesty of the other ones in all matters: In regard to SAR-values, cases like Macolini and the feel of the &quot;slap in the face&quot; (probably metastasis) on the side of the handy taken from our section for News&amp;Links and other cases, where magnetic influence was felt by second persons in the circumcirlce of more than three meters from the handy phoning, Gooken dissuades from all kind of wireless (mobile) phones except emergencies!
</B></font>
<BR><BR>
<font color="red" style="font-size: 12pt"><B>Two cameras, several microphones, a GPS-modulel and oodles private user data: smartphones are the perfect supervisory devices<BR>
Security export leaks out: Your smartphone can spy out - although you powered off everytjhing</B></font>, STERN.de, 08.02.2018<BR>
&Uuml;ber GPS und Co. k&ouml;nnen uns Smartphones permanent &uuml;berwachen. Zum Gl&uuml;ck kann man die Funktionen aber abschalten. Ein Forscher erkl&auml;rt nun, wie man diese Sicherheitsma&szlig;nahmen trotzdem aushebelt - und warum das kaum zu verhindern ist.<BR>
Zwei Kameras, mehrere Mikrofone, ein GPS-Modul und Unmengen private Daten der Nutzer: Smartphones sind die perfekten &Uuml;berwachungsger&auml;te.<BR>
https://www.stern.de/digital/smartphones/so-kann-ihr-smartphone-sie-ausspionieren---obwohl-sie-alles-abgeschaltet-haben-7855612.html<BR>
https://www.stern.de/digital/computer/erpressungs-trojanern--so-schuetzen-sie-sich-vor-ransomware-6725356.html<BR>
https://www.stern.de/digital/online/datenraub--mit-diesen-7-tipps-schuetzen-sie-sich-davor-8521708.html<BR>
https://www.stern.de/tv/datenhack--warum-wurde-es-dem-taeter-so-leicht-gemacht-und-wie-kann-man-sich-schuetzen--8521650.html<BR>
https://www.stern.de/digital/smartphones/so-kann-ihr-smartphone-sie-ausspionieren---obwohl-sie-alles-abgeschaltet-haben-7855612.html<BR>
https://www.stern.de/digital/online/der-mann--der-uns-schwierige-passwoerter-einbrockte--bereut-seine-entscheidung-7577534.html<BR>
https://www.stern.de/digital/computer/erpressungs-trojanern--so-schuetzen-sie-sich-vor-ransomware-6725356.html<BR>
https://www.stern.de/digital/online/iphone-privatsphaere--mit-diesen-einstellungen-schuetzen-sie-ihre-daten-8522116.html<BR>
https://www.stern.de/tv/datenhack--warum-wurde-es-dem-taeter-so-leicht-gemacht-und-wie-kann-man-sich-schuetzen--8521650.html<BR>
https://www.stern.de/tv/gute-passwoerter-und-co---so-schuetzen-sie-sich-bestmoeglich-vor-hackerangriffen-8524324.html
<BR><BR>
How to make mobile end-devices secure: http://www.pcwelt.de/ratgeber/So-sichert-man-mobile-Endgeraete-im-Unternehmen-ab-FAQ-9582121.html.
<BR><BR>
<A class="small" href="http://www.chip.de/news/Die-wichtigsten-Security-Apps-fuer-Android-So-sichern-Sie-Ihr-Smartphone-richtig-ab_102334330.html"  title="Android-Smartphone-Protection" target="_blank">This links origins from our section News&amp;Links#computer#smartphones, CHIP, 26.12.2016: Android-security is one thing to take care of with fitting apps. With such apps you do not need to fear NSA, data robbery, viruses and Co. anymore. CHIP presents the apps protecting your android-handy in a perfect way.</A><BR><BR>
<A class="small" href="http://www.pcwelt.de/ratgeber/Datensicherung-fuer-Smartphones-7965983.html"  title="Datensicherung_Smartphones" target="_blank">Data-backup for Smartphones: Here are the best solutions for data-backup for Android, iOS and Windows.</A><BR><BR>
<A class="small" href="http://www.focus.de/digital/handy/reparatur-heisst-das-zauberwort-kampf-der-kurzlebigen-technik-an-diesen-smartphones-haben-sie-jahrelang-freude_id_6027241.html" target="_blank" title="Smartphone_reparieren">ifixit: It is easy to repair smartphones - FOCUS Online.</A><BR><BR>
<BR><BR>
<font color="red"><B>10.000 mAh powerful monster-akku from Smartphone-Manufacturer OUKITEL, Focus Online 02.07.2015<BR>
Four times more powerful than Galaxy S6: This Smartphone has a akku-load durability of one week</B></font><BR>
The days of empty smartphone-akkus might be gone. The manufaturer OUKITEL plans the first smartphone with an akku-load of one week ...
<BR><BR>
<font color="red">See reports from our linkside: They are manufactured by perverts (Apple; see a report from our linkside), tiny displays bother the eyes, they radiate and cause serious hard accidents, while one can not care enough for IT security even around them: smartphones. Gooken primarily cares for the Desktop-PC. Therefore, before the (similar) use of smartphones and handies it is strongly recommended to have a look upon our linkside by clicking<a class="noflag" href="links.php#smartphones_handies" target="mainsite" title="smartphones_handies"> onto links or here</a></font>, but remark, that the use of so <font color="green">called-crypto-smartphones and crypto-mobil-phones</font> can provide the needed protection up to the already endangering point of crypto- resp. supercomputers. 
<BR><BR>
<a class="noflag" href="http://www.zdnet.de/41503177/warum-open-source-handys-die-besseren-smartphones-sind/3/" target="_blank" title="OpenSource-Handies">ZDNet / Mobile: Why Open-Source-Handies are the better smartphones, from Jack Wallen, 24. september 2009<BR>
Open Source provides the mobil market plenty of advantages beginning with the reducing of costs, more security up to many adoptable settings and a more productive development of applications. Do you agree, that  Open-Source-devices are the better smartphones? Or does Apple, even Microsoft with Windows Mobile 7 win the fight for the market share? You can write a comment.</a>
<a name="HARDWARESUPPORT"></A>
<BR><BR>
<center><B>Hardware-Support: device-drivers, hardware-databasis</B></center>
<BR><BR>
Kernel-5.4.110 (PCLinuxOS) with mkinitrd (pclos, rosa, mga2), nash (pclos, rosa, mga2), dracut (mga6: version 044, el6: version 004 (leads into manual LUKS-password request even in the case of existing password-key-file!, mdv2011: version 008)) and glibc (el8, pclos, mga6) resp. kernel 2.6.39 (mdv2010) with actual patches up to now from see our section for updates provides extended hardware support. But sometimes you just have to wait. So called &quot;old&quot; hardware must not be bad, the drivers are almost provided. Popular driver are already wtihin the kernel or kernel-modules. If missing in kernel-modules, belonging packages (rpm, deb) can be taken over into such modules. CPUs of mainboards consist of standard machine command sets that are already regarded in the package name like x86_64, i686, ia64, ppc, ppc64, ppc64le, aarch64, s390, s390x, arm, armhfp, sparc and so on, while the BIOS (BIOS-chip) on the mainboard should be socked, so that it can ordered, if malfunctioning. For the graphiccard you can use the UNIX/Linux-standard-driver fbdev or vesa. And the plugin of  TFT-monitors is as simple as it can be in the case of postscript-printers by naming the belonging PPD-file out of (rpm) openprinting-packages, manufacturers or manufacturer-driver-CD. Start MCC, go to section &quot;add a  printer&quot; and link to such PPD-file. Good to know, that USB is downward compatible.  If the (W)LAN-chip does not work, a standard-PCIe- or PCI-ethernet-card helps out, until the packages or Tarballs for the driver are released in the internet, same for graphiccard and the onboard-soundchip.
<BR><BR>
<B>Hardware for Linux</B>, PC-WELT.de, 11.06.2019<BR>
Question: Is it guranteed, that hardware can be used for Linux for my PC, netbook and peripherals unrestrictedly?<BR>
Answer: To say it shortly: No. Here&#180;s the long version of the answer: It takes a leap of faith. Hardware manufacturer seldom offer support for Linux. Basic components like graphik-, SATA- or Ethernet-chipset do not provide problems. But for printer, scanner, USB-TV- or WLAN-Stick, in many cases the driver CD does not include drivers for Linux. And even if, they just fit seldomely into the installed system. Notebooks are often restricted too. In some cases the brightness of the monitor screen can not be adjusted by key combinations or the power modes do not function like in Windows.<BR>
Therefore it only helps to get informed through the internet or by the salesman about notebooks and peripherals. There are salesman specialized for Linux like Tuxedo.<BR>
https://www.pcwelt.de/ratgeber/5-Fragen-und-Antworten-fuer-Linux-Anfaenger-10589209.html
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">
PC-WELT.de, 01.09.2015: <cite>&quot;Find out compatible hardware before you order it<BR>
Whoever does not want to care for Linux-driver, one should check out the compability of the hardware before it is ordered. In most cases it is sufficient to start a search by searchengines with the name of the hardare device in combination with &quot;Linux&quot;. One can also search in hardware-databasis. It es also useful to get informed by websites like http://wiki.ubuntuusers.de/Hardware with lists of hardware, that functions and tipps for their installation. Informationen about TV-cards and Sticks are also providid by Linux TV. <BR>
Of Linux should be installed on a notebook, http://tuxmobil.org or Ubuntu Wiki provide userful information. There are some manufacturer specialized for notebooks with preinstalled Linux like Tuxedo Computers, although such devices might be a little bit more expensive than Windows-notebooks.&quot;</cite>
<BR><BR>
After an upgrade of the glibc from mdv2010 to rosa2014.1 or mga3 a hugh repertoire of driver-packages and -tarballs are provided for even actual hardware.
<BR><BR>
Such companies do provide drivers for Linux:<BR>
Graphic cards: Intel, Nvidia, AMD
<BR>
Printer and scanner: Epson, HP, Intel, Samsung, Brother and Canon 
<BR><BR>
Hardware databasis and hardware support:<BR>
<font style="font-size: 9pt">
http://openprinting.org for Ghostscript- and the PPD-files of postscript-printer<BR>
https://de.opensuse.org/Portal:Hardware<BR>
http://wiki.ubuntuusers.de/Hardware<BR>
http://linuxtv.org/wiki/index.php/Hardware_Device_Information<BR>
http://community.linuxmint.com/hardware<BR>
http://tuxmobil.org/<BR>
https://wiki.ubuntu.com/HardwareSupport/Machines/Laptops<BR>
http://www.tuxedocomputers.com<BR>
http://wiki.ubuntuusers.de/Drucker<BR>
http://www.pcwelt.de/ratgeber/Uefi-statt-Bios-Das-muss-man-beim-Linux-Boot-beachten-Von-USB-und-DVD-9715238.html<BR>
http://wiki.ubuntuusers.de/Scanner</font>
<BR><BR>
A detailed report about the hardware-support of drivers is provided by the following article: http://www.pcwelt.de/ratgeber/So-bringen-Sie-Linux-trotz-Probleme-zum-Laufen-9789269.html.
<BR><BR>
If a driver is still missing, he can be buid (constructed) by any user. Several howtos can be found in the internet. For the printer packages lke cups-ddk are released for cups. 
<BR><BR>
X11-server-troubleshooting (graphic card): see our section for &quot;updates&quot;
<BR><BR>
Printer-Troubleshooting: see our data sheet, section printer
<BR><BR>
<center><B>Lacks in security</B></center>
<BR><BR>
 &quot;The way is the target&quot; are the well-known words from our precedent security-manager Konfuzius (...), that made us write here so much. Our main aim is to drag him out of the computer-scene for IT security and, who is awake enough, even forever! Together with the checklist it is proofed, that computer technology must not be nonsens, even if it is meant so and even if there is nothing really secure in this world, because of the race of the safeendangering with the secure and the certain kind of human behind this scene. Computer-history of nowadays with the typical constitution of software in intransparent &bdquo;pirate-black&ldquo; binary machine-code, unlucid amounts of versions and distributions have shown some more (responsible) difficulties in satisfying claims for achieving real protection for the jack of all trade. Smartphones, notebooks and so on are only mentioned on our linkside. MG Chip: "The combination of raster-electron-, raster-Auger- and raster-plammet-microscope is cracking any kind of chips, however signed secure from manipulation". Serious hard cases of system-self-destructs can not be excluded. But resignation does not help. Nevertheless the aim in general of this excursion is to provide computer-systems with almost no lacks in security at all, and therefore (quit) without any scans from hard-disks by any scan-software. By following the excursion, <font color="green" style="font-size: 12pt"><B>your UNIX-computer will be freed from all (!) problems with the computer quit at once like</B></font> (... ever seen so much red in your documents?)
<BR><BR>
<IMG SRC="images/niue-muenzen-min.jpg" alt="suneater_miro" align="left" border="0">
<font color="red" style="font-size: 9pt"><B>proprietary software (opensource against liablity, more clearance of question about liablity), cost-traps (here: billing by handies and SMS, overread of additional parts of contracts and the conditions), blackmail for unlocking suddenly locked computers (see our report under links), abuse of copyrights and patents, cult for criminals, billions hard investment into spying software and techniques, missing, confusing or the fluctuating IT-security-concept, hard-disk-scans, defragmentation (unnecessary for many UNIX-file-systems), harddrives (instead of MC-SSD, cite: &quot;A magentic harddrive is much to risky to intrust data. Although a lot of improvements took place, who has not heart or - in worst cases - made the experience of lost data. Therefore enough reasons are relevant.&quot; (source: poshtar&#64;datensicherx.com, 13.05.2014)), the demand for a registry, registry-errors (UNIX-systems have no registry), degeneracy of the registry, suddenly or inpredictable lost files, explosion (of net-adapter), fire (net-adapter, porous PC-lautspeaker-cable, ...),  your own ununderstandable blackened company (enlighted by our PHP-MySQL-company management Mycompanies), virtual blackmail by encrypting harddrives against ransom, shooting through unmanned flying objects as a technical response to stored data, kontermination (through chipsets, preventable by IGP and all-in-one-mainboards) and radiation, WLAN-radiation (see our linkside), CRT-radiation, CD-burner-radiation, netadapter-radiation, warning high SAR-value (handies), zero-emission (reflectable monitor emissionf or example by special PCMCIA-cards prevented by special editors like the zero emission pad), hardware-recognigtion (standarized driver, Kernel ver. greater 2.6.30), infiltration of social networks, handy-hunts through nets, inconsistency (vs. everlasting science), need for upgrades (new tarballs, zip-archives, functionality), updates, patches and bugfixes (vs. functionality), browser with outdated ssl3.0 (modern usage is provided by TLS), changeovers to different security software, missing changelogs, software-overload on harddisc (Opensource, independency-checks, other introduced methods), hacker (STATE-NEW lined iptables-blocking), large holes in firewalls (iptables block-rate), intrusion and valdalism, viruses (access-rights of UNIX-filesystems), freak (patch or prefer browsers like Firefox or Konqueor instead), abuse by virus scanner (standard opensource clamav), worms, rootkits (rkhunter) resp. botnets and trojans (no botnets and no trojans by correct usage of the OWNER-concept of iptables), manipulation by system-administrators upon software, files and configurations, ddos-attacks (almost on the base of bots and trojans), inactual alarms, false-alarms, forgotten or coded warnings and error-messages, ad- and spyware as much as Trackingscripts (firefox-addons), Driveby-Downloads, Canvas Fingerprinting (see under online check), forced acquisition because of truncated customer support for old operating systems (lifetime installation-support for all mdv/mdk over &quot;pointed 1-&quot; to &quot;pointed 0&quot; versions), product-manufacturing fault right on the surface of installation-CD/-DVD, aggressive marketing, need of updates and upgrades instead of functionality, unknown authors behind the named, burn-errors,  problems with the BIOS and during the system-startup resp. boot, flush and reset, intransparent boot-processes, hard undestandable process-names (partial standarizement by UNIX/Linux), unmushed nets (failsafed mushed nets), video- and voice-recording, judge-microphons, observing satellite technique (see under links), spanish flies, night viewers, evaluation of such recordings (audit, protocolling files), text- and image-manipulation, manipulation of websits by webhoster, instability, system-breakdowns, broken USB-Sticks (secure umount and never before, fsck), usage of USB-hubs instead of prolonging USB-cables only, manipulated electric meter and cables (UPS: unbreakablel power supply), ineffective encryption through non scientific based cryptograhic methods from highschools, the search for important function-keys,iweak point human, insufficient set of (security-) system-commands, hangons and newstarts, anomal login attempts (LADS - login anomally detection system), inactual alarms and warnings, installation of malware by the opening of e-mail-attachements, unsigned installation from anywhere, installation by everyone, inportability, defect peripherals and hardware, restricted presentation of websides, keylogger and other malware, wiretrapping bedbugs (from USB-cards and other devices), hack of sensible data from USB-sticks through their microcontroller, crack of WLAN-encryption-keys, spy-nets, false email-sender-addresses (disabled browser-cache, header of email-source-text, digital signatures by public signature-keys, de-Mail), DoS-attacks, root-rights providing buffer-overflows (bugs),<BR>
aggressive marketing, missing warnings of the BIOS during overheatings of the CPU and from the inside, malfunction of USB-memory-sticks,  intransparent boot-procedures without detailed information, long boot-times,  weak-point-human (as a title of a contribution from a newsgroup), hard to understandable files and processes by name, side-manipulation and censorship by webhosters, need for additional software for example for ftp-transfer, use of harddiscs instead of durable and less power-consumpting (MLC-) Solid State Disks (SSD), installation of malicious software by opening attachments from e-mail, need for external graphic- and sound-cards (IGP,  onboard integrated graphic- and sound-chips), software from unspecified sources (integrity checks, checksum), installation by any users instead by users with special access rights only, cloud computing (by avoiding storage onto foreign media, extern harddrive, USB-memory-stick), bad cable connection, listenings in to WLAN, cracks of WLAN encrypting keys, illegal access into WLAN-access-points, broadcasting bedbugs from USB-cards or other devices), lack of test reports and exchange of experiences (datasheed and test-forums), low duration of batteries and akkus, unknown details of OS-kernel bad or low encryption, encryption by elsewheres cryptographic methods instead of those checked resp. developed by high-schools, bad or low encrpted instant messaging (OTR, ...), manipulation of files like out of /etc/security/msec (FDE, FSE for full disc and full system encryption), file-encryption), vandalism &quot;you can power off your computer now!&quot;, insecure passwords, inpredictable exhaust of passwords, amount of passwords (kwallet and relevation), visiblity of files storing passwords (steghide), bad adhere to deadlines, intimelineness, forget of the sourrounding (dating planner, countdown clocking, scheduler, task scheduler, ntp-daemon), burn error on CD/DVD (noflushd), inportability, unmashed nets (failsafe mashed), security endangering security software, missing software, incomplete set of (security-)system-commands, instabilty (breakdowns, blackouts and hang-ons, Alpha-Beta-software-developement stages, ...), release of authorizing root-rights, hacker, smashed wholes into firewalls, viruses, worms, rootkits (rkhunter) resp. trojans, dialer, hoax (watching out for the sender), false alarms, anomal attempts to login (Login Anomaly Detection System like LADS, delays after false-logins, commands to list logins and login-times, risks of WLAN (many single security operations have to be performed), security lacking file-systems,  restricted file-systems (capacity of copied files, sytem dependencies, looking out for important function keys (BIOS, security modes...), inpredictibale deletion of files from anywhere, inpredictable remote maintenances, changing of fundamental configurations and settings, need for a registry, registry-errors, Entarten and Verwaisen der Registryeintr&auml;ge, capacity restricting zombies, adware, popups, tracking scripts, ad- and spyware, online registrations for the release of software, spy-nets, intransparent connecitions over foreign net-nodes ( traceroute-command tcptraceroute see News&amp;Links#Computer ), DoS-attacks, click-ping-tracing, cookies and Third-Party-cookies, supercookies, informing browser-chronicle, ABE, cross-side-scripting, operating time with akku/batteries, suspicious plugins, encryption cracking supercomputers, restricted presentation of websides, censorship depending of the true aims behind, spam (Spamassassin), spam-entries (Captcha), scam, missing option resp. missing command for even foreign notes through the net registrating traceroute (comannd tcptraceroute), read and writes from harddiscs by other parties, phishing, dialer, dissuasiveness, need of upgrades, errors and mistakes, missing software, registration, forwardings and therefore profiling by search-engines and depreciation, pass of hugh server-farms and advertising-networks, personalized advertisment, profiling, identifying ua-browser-answerback (see our online check) resp. IP, static new IP-adress-room ipv6, identity theft, pre-punishment-registration (cybermobbing), bad support, maintenance, bad sectors and file-systems with errors resp. the long time for their repair, capacity-resctriction of file-systems during file-transfer, bad encryption, online speed-blocker, editors (programming) without syntax-highlighting, missing log-files for protocolling, wait-states, needs for many drivers, more than hard to understand names for system-files, processes and errors, hard to understand names for processes and files, support for children and disabled (input-support and other programs like dasher, mouse-tweaks, speech, squid-guard, window-manager like LXDE and XFCE, ...), problems typing in by the ten-finger-system (missing keyboard), manufacturing faults on CD-surfaces (MS 98/SE), insufficient or bad tuned software-components and the risk of their dependencies, need for additional software like for ftp-transfer, old concept of magnetic hard-drives instead of long-durationed, specific natural durabilities for the storage, fast working and powersaving Sold Sate Drives (SSD), need of repair, (extern) graphic-, sound- and ethernet-cards (all-in-one boards, ideally with CPU, cooler and RAM) as a contribute to the enburdening of net-adapter to prevent open fire and explosions, 1000-Watt-PC, 65-Watt-CPU,  techical reconstruction of direct debit mandates, missing delivery of online-ordered goods, especially from foreign countries and in cases of a too low amount in controversy, different device-interfaces (well known solved by downward-compatible USB), the disperse resp. page of the security-concept,  waste of ressources, waste disposal problems,  intern self-destructs, write-offs, science pocketing software-companies, costs for acquistion, licences, training,  additional costs, difficulties or bad handlings,  ...
<BR><BR>
 ... &quot;in West Nix Niue (not new)&quot; ...
</B></font>
<BR><BR>
 with alternatives from our data sheed now all at low cost on the ground of power-consumption like energy saving lamps! 
<BR><BR>
<font color="red" style="font-size: 12pt"><B>Data Protection<BR>
Windows 10: Deactivated funtions do send data to Microsoft</B></font>, http://www.pcwelt.de/news/Windows-10-Deaktivierte-Funktionen-senden-Daten-an-Microsoft-Datenschutz-9781744.html 
<BR><BR>
Other person do in the best case thinkable even not know, if you possess a computer at all, neither by IP nor DNS nor they know about your installed operating system resp. operating systems, installed software and files!
<BR><BR>
<font color="red"><B>Although only human failures can cause errors during the installaton of mdv2010, some errors can happen. There is an amount of error-messages of mdv2010, that do not help troubleshooting, some are missing. Therefore we recommend a second SSD for the backup of every important installation-state of the first one. Then as many packages can be installed on the SSD as the user likes and ever needs without lacking in system-security, if you are installing operating-systems like mdv2010 with packages totally sized over 65 GB!</B></font>
<BR><BR>
<font color="red" style="font-size: 12pt"><B>Survey of the internet node: DE-CIX sues BND</B></font>, Tagesschau, 22.04.2015<BR>
The BND is taken into response before law for his surveys of the net-node DE-CIX in Frankfurt at Main. The holde of the node is going to sue. Criticizer do also sue the government for making tricks. Arond thre terabit data per second are passed and overworked, an amount of 600 CD-Rom. To the customers count all big internet companies like the Deutsche Telekom, Vodafone and Verizon, more details see Links, section &quot;NSA, GHCQ &amp; Co.&quot;.
<BR><BR>
Prism.break is right to recommend both alternatives (addition from 07.09.2013): Tagesschau reports about weak-points in many security software. The industry for software would have been built-in backdoors in their programs. It were possible to get information right before a user encrypts them and to send them over the internet. Super-computer were constructed to crack encrypted codes. NSA-program &quot;Bullrun&quot; belonged to the most kept secrets. 
The british agency GCHQ were very successfull in cracking code. 
<BR><BR>
prism-break.org: &quot;With proprietary software, you need to have 100% trust in the vendor because there&#180;s nothing except for their morality in the way of them leaking your personal information. Even if you can vouch for their integrity, proprietary software invariably has more uncaught security bugs and exploits because there are fewer eyes examining the source code.&quot;
<BR><BR>
prism-break.org, 2014: &quot;Apple, Google and Microsoft are probable part of PRISM. You can not trust their proprietary operating systems in the matter of keeping sensible data safe from NSA. 
<BR><BR>
<font color="green">Two alternatives do remain: GNU/Linux and BSD.</font>
<BR><BR>
GNU/Linux has a much hugh community than BSD in order to help us for the change. It is recommended to search for a proper GNU/Linux-distribution fulfilling the requirerments.&quot;
<BR><BR>
PCWelt.de, 19.10.2015: &quot;BitBox BitBox is a browser-in-the-box - a virtual environment, in order to secure the internet to make it more comfortable during the surfing. This virtual machine with a separated webbrowser protects in front of dangers, for example the rebuild resp. modified browser Dragon from the antivirus expert Comodo. His appearence reminds of Google Chrome, but Dragon is constituted to be more stable and thanks the privacy mode this browser is able to stop serious hard cookies. The inspection of SSL-certificates is more precise. Whoever wants to keep his browser save before the rest of the PC, likes to prefer BitBox - a browser-in-the-box. The developers of BitBox,  the Bundesamt for Information Security (BSI), has put their browser into a fitting virtual <B>Linux-environment</B>. Linux has got some advantages in comparison to Windows - there are only a few &quot;varmints&quot, known for this operating system offered for free. So you use a virtual Ubuntu for a surf-system resp. for online-banking. A virus scanner is not required anymore. Tip: Alternatively use Wubi.exe, in order to install Ubuntu beneath Windows. This small file installs Ubuntu beneath Windows on the harddrive. When the system starts, the system is chosen. In this case, a virtual box is not needed anymore.&quot;<BR> 
<BR><BR>
On Tuesday, March 3, 2015, researchers announced a new SSL/TLS vulnerability called the FREAK attack. It allows an attacker to intercept HTTPS connections between vulnerable clients and servers and force them to use weakened encryption, which the attacker can break to steal or manipulate sensitive data. This site is dedicated to tracking the impact of the attack and helping users test whether they&#180;&#180;re vulnerable. In addition to browsers, many mobile apps, embedded systems and other software products also use TLS. These are also potentially vulnerable if they rely on unpatched libraries or offer RSA_EXPORT cipher suites.
Vulnerable Browsers are Internet Explorer,. Chrome on Mac OS, Chrome on Android, Safari on Mac OS, Safari on iOS, Stock Android Browser, Blackberry Browser and, Opera on Mac OS.
Firefox (Windows, MAX, Linux) and Konqueror (Linux) are not affected, see freakattack.com for more details.
<BR><BR>
Tagesschau, 07.31.2014: Actually scientific experts found out, that sensible data can be read out through microcontrollers (processors) from USB-sticks, see the report from our linkside under the point links! Therefore a new USB-standard is devoloped. By this, all data of computers can be read out, even passwords and email-contents as much as devices be steered like webcams. The operating sytem does not notice all of this, as it believes in key-strokes and not software attacks.
<BR><BR>
prism-break.org: &quot;We recommend MC-based SSD instead of magnetic harddrives, &quot;A magentic harddrive is much to risky to intrust data. Although a lot of improvements took place, who has not heart or - in worst cases - made the experience of lost data. Therefore enough reasons are relevant&quot; (source: poshtar&#64;datensicherx.com, 13.05.2014)) (similar to magnetic hard-drives, in order to keep the very fast access-times of a SSD, at least 4 GB memory should be kept free, comment, the Red.)
<BR><BR>
<B>Legend end: Microsoft ends up with Internet Explorer</B>, Focus, 18.03.2015<BR>
New browser past 20 years<BR>
After two decades a legend of the internet died: Microsoft actually develops a new browser, in order to exchange the Internet Explorer. For the next time, his name is &quot;Spartan&quot; - and he shall have nothing to do with his precedor. 
<BR><BR>
Tagesschau, 28.04.2014: Vulnerabilities of the microsoft-browser<BR>
<font style="font-size: 12pt"><B>USA dissuade from Internet Explorer</B></font><BR>
In Microsofts Internet Explorer, market share more than 50% (2012, studie web-analyzators from Net Applications), vulnerabilities past the date for support fof XP (08.04.2014) were found, that do still exist. The US-government advises to use other browsers for the next time. There would be so much difficutlies in the Explorer-version six to eleven, that hacker can cause enormous harm, warned the ministry of home country protection. Problems are known since the weekend. Microsoft told, to do something against them. The vulnerabiltity would cause in wrong programmed memory-accesses.  
Prepared websites, that user of the internet-explorer call, could provide access for attackers to the computer, in order to execute mailicous code and take control upon the computer. The vulnerabilty already is effectively in use. It is the first serious one, since the support for Windows XP ended. Therefore it could still exist for PCs with the 13 years old operationg system regardless from Microsoft having solved the problem. 
<BR><BR>
In News&amp;Links we describe, howto make an Internet Browser of MS Windows upon the base of a Debian-sandbox secure, downloadable for free.
<BR><BR>
<font style="font-size: 12pt"><B>Internet-Gang robbs one billion dollar from banks</B></font>, Focus, 15.02.2015<BR>
A bank robbery in the internet-century were made in that way: A Gang broke into in computer-systems of credit institutes and manipulated even account balances. They would have get any amounts of money from cash automates they liked.  
<BR><BR>
Focus 2015: <font color="red" style="font-size: 12pt"><B>Antivirus-scanner promise allround-protection for the computer and to make the surfing online more secure. But in the half of all cases, they can not defend cyber-attacks.</B></font>
<BR><BR>
Tagesschau.de 11/2013: Appelbaum from Wikileaks sees opportunities for effective encryption. Therefore free and open source were needed. Not all encryption were the same, not all companies have been confidential or can be trusted.
<BR><BR>
Tagessschau, 11/2013: Wikileaks sees opportunities for functioning encryption. One needs free and open sourced software. Not each encryption were secure, not all companies were trustable. Wikileaks hops for concete methods against. For expample, if an attorney were proclaiming trust on telephone, although he did not use an encrypted telephone, one should call careless.
<BR><BR>
Tagesschau, 10.03.2014, cite Snowden: &quot;If you encrypt your hardware and connections within nets it is much more difficult to collect your data by mass-wise-controlling software. Of course, such data can be cracked resp. hacked for special surveillance, but remain more secure. The best proof would have been delivered by his encrypted kept own documents sent per email.&quot; ( two encryption can be made for e-mail-transfers: one of the text-includes of e-mails by pgp-gpg, one by pop3s and smtps (TLS) for the belonging connection to the pop3- and smtp-server). 
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left"><font color="red" style="font-size: 12pt"><B>WLAN-Router<BR>
Router-Sicherheitstest 2020: AVM, Asus &amp; Co. im Vergleich</B></font>, PC-Magazin.de, 16.6.2020<BR>
Welchen Anteil haben verbreitete WLAN-Router am Schutz des heimischen Netzwerks und seiner Nutzer? PC Magazin und das Sicherheitslabor AV-Comparatives sind dieser Frage in einem umfangreichen Test nachgegangen.<BR>
https://www.pc-magazin.de/vergleich/router-sicherheitstest-2020-3201633.html
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left"><font color="red" style="font-size: 12pt"><B>Viele WLAN-Router von Sicherheitsl&uuml;cke bedroht: Nutzer sollten bestimmte Funktion besser abschalten</B></font>, CHIP, 28.05.2020<BR>
IT-Spezialisten haben eine schwerwiegende Router-Sicherheitsl&uuml;cke entdeckt, die offenbar eine ganze Reihe von Netgear-Ger&auml;ten betrofft. &Uuml;ber die L&uuml;cke k&ouml;nnen sich Angreifer unbemerkt Kontrolle &uuml;ber die Router verschaffen und dem Nutzer so manipulierte Updates unterjubeln. Wie Sie sich davor sch&uuml;tzen k&ouml;nnen, lesen Sie hier. Worauf es beim Kauf eines neuen Routers ankommt, erkl&auml;ren wir Ihnen im Video.<BR>
Die Sicherheitsforscher des IoT-Labs der FH Ober&ouml;sterreich sind auf eine eklatante Sicherheitsl&uuml;cke beim Netgear-Router Nighthawk R7000 gesto&szlig;en; offenbar sind auch viele weitere Modelle gef&auml;hrdet. Das Problem: Der Router bezieht Firmware-Updates zwar verschl&uuml;sselt - dabei wird von den Ger&auml;ten offenbar jedoch nicht das jeweilige Serverzertifikat gepr&uuml;ft. Dadurch ist es Angreifern grunds&auml;tzlich m&ouml;glich, manipulierte Updates der Firmware auf dem Router zu installieren. So k&ouml;nnen sich die Cyber-Kriminellen potentiell Kontrolle &uuml;ber die Router der Nutzer verschaffen.<BR>
Sind einzelne Dateien beziehungsweise der Update-Server selbst gerade nicht verf&uuml;gbar, kann es sogar dazu kommen, dass die Router bei der Installation g&auml;nzlich unverschl&uuml;sselte Protokolle nutzen, um die Updates zu installieren, was Angreifer ihre Attacken noch leichter durchf&uuml;hren l&auml;sst. Hinzu kommt, dass digitale Signaturen vor dem Update-Prozess nicht &uuml;berpr&uuml;ft werden. Das f&uuml;hrt dazu, dass die Router auch manipulierte Updates installieren, ohne dass dies vom Ger&auml;t erkannt wird. Sowohl der automatische Update-Prozess als auch das Update via Assistent im Web Interface sind offenbar von der Schwachstelle betroffen.<BR>
Eine offizielle L&ouml;sung seitens des Herstellers gibt es bisher nicht: Wie die Forscher der FH Ober&ouml;sterreich schreiben, habe sich Netgear seit Ende Januar nicht mehr zu dem Problem ge&auml;u&szlig;ert, geschweige denn einen Work-Around via Update ausgerollt.<BR>
https://www.chip.de/news/Viele-WLAN-Router-von-Sicherheitsluecke-bedroht-Nutzer-sollten-bestimmte-Funktion-besser-abschalten_182735284.html
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left"><font color="red" style="font-size: 12pt"><B>Router-Sicherheit: Virenforscher warnt vor Angriffen &uuml;ber den Browser</B></font>, Spiegel Online, 26.05.2015<BR>
&Uuml;ber manipulierte Websites l&auml;sst sich die Konfiguration diverser Router &auml;ndern, warnt ein Virenforscher. Weil die Ger&auml;te fortan Anfragen auf gef&auml;lschte Internetangebote umleiten, haben Kriminelle die Chance, Passw&ouml;rter mitzuschneiden. Einmal falsch geklickt, schon macht der Router &Auml;rger: Eine raffinierte neue Attacke nutzt die Schwachstellen g&auml;ngiger Modelle aus, Unbekannte stellen daf&uuml;r mit Schadsoftware verseuchte Webseiten ins Netz. Der unter dem Pseudonym Kafeine bekannte Sicherheitsexperte beschreibt auf seinem Blog das Problem, das mindestens 40 Modelle bekannter Hersteller gef&auml;hrdet, darunter Ger&auml;te von Asus, Belkin, D-Link, Linksys, Netgear und Zyxel. Fritzbox-Router tauchen nicht auf der Liste auf. Die Angriffe, die Kafeine beobachtet hat, verlaufen nach folgendem Muster: Nutzer von Googles Chrome-Browser werden zu einem Server umgeleitet, der Schadcode enth&auml;lt. Dieser versucht, das Router-Modell des Nutzers zu bestimmen, um dann die DNS-Einstellungen des Ger&auml;ts zu &auml;ndern. Das Domain Name System, kurz DNS, wird oft als Adressbuch des Internet bezeichnet, denn es funktioniert ganz &auml;hnlich: Gibt der Nutzer im Browser eine bestimmte Web-Adresse ein, geht die Anfrage an den Router, der dann mithilfe eines DNS-Servers die passende IP-Adresse nachschl&auml;gt. Gelingt es einem Angreifer, sich mithilfe eines manipulierten Adressbuchs in diese Kette zu schalten, kann er dem Router andere IP-Adressen unterjubeln und den Nutzer so auf gef&auml;lschte Websites lotsen. Kriminelle k&ouml;nnten etwa die Startseite einer Bank nachahmen, um die Log-in-Daten abzugreifen, die auf der gef&auml;lschten Seite eingetippt werden.Fast eine Millionen Zugriffe an einem Tag: Unbekannten Angreifern ist k&uuml;rzlich offenbar eine solche Umleitung von Seitenaufrufen gelungen - und das massenhaft: Ein von Kafeine beobachteter DNS-Server konnte in diesem Monat bisher t&auml;glich rund 250.000 Zugriffe verzeichnen. An einem Tag - dem 9. Mai - waren es sogar fast eine Million Zugriffe, schreibt der Virenforscher. Die Angreifer gehen clever vor: Als sekund&auml;ren DNS-Server nutzen sie Googles &ouml;ffentlichen DNS-Dienst, was bedeutet, dass die Betroffenen auch dann Seiten erreichen, wenn der Server der Angreifer einmal den Dienst verweigert. Bemerkenswert ist, dass offenbar nicht nur Router gef&auml;hrdet sind, deren Fernwartungsfunktion aktiviert ist. Der beschriebene Angriff erfolgt Kafeine zufolge durch eine sogenannte Cross-Site-Request-Forgery (CSRF), mit der ein Browser gezwungen werden kann, Aktionen auf fremden Webseiten auszuf&uuml;hren. Ziel des Angriffs ist die Administrations-Oberfl&auml;che des Routers. Auch wenn sie von der Fernwartung abgekoppelt und eigentlich nur im lokalen Netzwerk verf&uuml;gbar ist, l&auml;sst sie sich attackieren, da Router im Gegensatz zu Internetseiten oft nicht gegen CSRF-Attacken gesch&uuml;tzt sind, schreibt &quot;Computerworld&quot;. 
<BR><BR> 
Wie kann man sich sch&uuml;tzen?
<BR><BR>  
Die von Kafeine ver&ouml;ffentlichte Liste betroffener Ger&auml;te ist vermutlich nicht vollst&auml;ndig. Nutzer sollten daher - unabh&auml;ngig davon, ob ihr Router zu den genannten geh&ouml;rt - pr&uuml;fen, ob die Firmware Ihres Routers auf dem neuesten Stand ist und sie gegebenenfalls aktualisieren. Die Cyberkriminellen machen sich mit diesem Angriff n&auml;mlich vor allem die Bequemlichkeit der User zunutze: Einen Router konfigurieren viele Nutzer nur einmal, danach k&uuml;mmern sie sich nicht mehr darum. Wie wichtig regelm&auml;&szlig;ige Firmware-Updates gerade f&uuml;r diese Schnittstelle ins Internet sind, hat erst vor einigen Tagen die NetUSB-L&uuml;cke gezeigt.
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left"><font color="red" style="font-size: 12pt"><B>Passw&ouml;rter von 500.000 WLAN-Routern geleakt: Das sollten Nutzer jetzt unbedingt beachten</B></font>, CHIP, 21.01.2020<BR>
FritzBox Firmware Update: So einfach geht die Aktualisierung<BR>
Hacker nutzen WLAN-Router und Server, um Botnets aufzubauen. Nun wurden die IP-Adressen und Passw&ouml;rter von &uuml;ber einer halben Million Ger&auml;ten frei zug&auml;nglich im Netz ver&ouml;ffentlicht. Doch es gibt Ma&szlig;nahmen, die jeder Nutzer jetzt ergreifen kann. Zum Beispiel ein Update. Wie Sie Ihre Fritzbox am besten updaten, erkl&auml;ren wir Ihnen im Video.<BR>
https://www.chip.de/news/Passwoerter-von-500.000-WLAN-Routern-geleakt-Das-sollten-Nutzer-jetzt-unbedingt-beachten_179776444.html
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left"><font color="red" style="font-size: 12pt"><B>Router updaten: Bundesamt warnt vor Sicherheitsl&uuml;cken</B></font>, PC-WELT.de, 07.01.2020<BR>
Das Bundesamt f&uuml;r Sicherheit in der Informationstechnik (BSI) warnt Besitzer von D-Link-Routern vor einer Schwachstelle.<BR>
Das Bundesamt f&uuml;r Sicherheit in der Informationstechnik (BSI) warnt aktuell die B&uuml;rger mit zwei technischen Sicherheitshinweisen der Risikostufe 3 und Risikostufe 4 vor Schwachstellen in WLAN-Routern des Herstellers D-Link. Die erste Schwachstelle erm&ouml;gliche die Offenlegung von Informationen. Die zweite L&uuml;cke erm&ouml;gliche das Ausf&uuml;hren von beliebigem Programmcode.<BR>
https://www.pcwelt.de/news/Router-updaten-Bundesamt-warnt-vor-Sicherheitsluecken-10732250.html
<BR><BR>
<font color="red" style="font-size: 12pt"><B>Typische Probleme am Router l&ouml;sen</B></font>, PC-WELT.de, 10.09.2019<BR>
Wenn selbst bei schnellem DSL Streams stocken oder Internettelefonate abbrechen, helfen die richtigen Einstellungen am Router.<BR>
https://www.pcwelt.de/a/typische-probleme-am-router-loesen,3449919
<BR><BR>
<font color="red" style="font-size: 12pt"><B>Kein Zugriff auf 192.168.1.1? So klappt das Router-Login</B></font>, PC-WELT.de, 18.03.2019<BR>
Trotz Eingabe der IP-Adresse 192.168.1.1 oder 192.168.2.1 im Browser klappt das Router-Login nicht? Wir bringen Sie in 7 Schritten ins Router-Men&uuml;.<BR>
https://www.pcwelt.de/ratgeber/192-168-1-1-so-klappt-das-Router-Login-9638280.html
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">
Browse: Therefore always try to turn http:// -&gt; http<B>s</B>:// (ssl) in the address-line of your browser manually, before the URL of the webside is entered! Favorites should contain only such  URL too. Notice, that a ssl-certificate of the webserver resp. webhoster is not present in all cases!
<BR><BR>
<font color="red" style="font-size: 12pt"><B>JonDoBrowser: Anonymous Firefox-replacement, still beta</B></font>, CHIP, 14.09.2012<BR>
The JonDos GmbH (University Leipzig) accused Firefox for having built-in functions, that are harmful for data protection. Therefore their developers released the (together with Jondo) anonymizing JonDoBrowser Beta for free, http://www.chip.de/news/JonDoBrowser-Anonymer-Firefox-Ersatz-mit-Macken_57527151.html. 
<BR><BR>
<font color="green" style="font-size: 12pt"><B>Jondofox - Firefox with condom</B></font><BR>
Download Jondofox: http://www.heise.de/download/product/jondofox-58547/download<BR>
We, Gooken, introduce a list of security browser on News&amp;Links#Alternatives#The-Green-LED#BrowserCharts  For installing Jondobrowser, set the path to the firefox-profile in the installation script of Jondofox manually to /home/surfuser/.mozilla/firefox. The inegration follows right past the start of firefox. Never install addons not basing on Open Source. Jondobrowser&#180;s integration of Add-ons like https-everywhere should, as described, also be seen critically. 
<BR><BR>
Freak: &quot;Freak&quot;-Sicherheitsl&uuml;cke: Auch Windows betroffen, 06.03.2015,<BR>
Mit einem sogenannten &quot;Freak&quot;-Angriff wird es Dritten m&ouml;glich, eigentlich gesch&uuml;tzten Datenverkehr zu entschl&uuml;sseln und wom&ouml;glich pers&ouml;nliche Daten mitzulesen. Diese Betriebssysteme und Browser sind betroffen.<BR>
Am vergangenen Dienstag wurden Informationen &uuml;ber die sogenannte &quot;Freak&quot;-Sicherheitsl&uuml;cke &ouml;ffentlich gemacht. Durch diese k&ouml;nnen Dritte Daten aus eigentlich gesch&uuml;tzten SSL-/TLS-Verbindungen abgreifen. Damit dies aber tats&auml;chlich m&ouml;glich wird, m&uuml;ssen bestimmte Kombinationen aus benutztem Webbrowser und verwendetem Betriebssystem gegeben sein. Grunds&auml;tzlich sind Android-, iOS-, Windows-Phone-, Windows-, Mac- und Linux-Nutzer gef&auml;hrdet. Zum Ausnutzen der L&uuml;cke m&uuml;ssen zudem Webseiten mit einer geschw&auml;chten Verschl&uuml;sselung angesurft werden, wie auf.
<BR><BR>
During a normal browsing with MS Windows and MAC, focus 31.08.2014<BR>
<font color="red" style="font-size: 12pt">Danger in the internet: the unvisible drive-by-download</font><BR>
Infections by drive-by-downloads are very perfide. During the surfing in the internet, malware of infected websites can be loaded onto the computer without the possibility to notify it - article by FOCUS-Online-expert Marco Preuss
<BR><BR>
Stern.de reports in April 2014 about adobe-flash-player with security-lacks that can lead into trojans finding out password and credit-card-information. Updating this software is strongly recommended, same for Java. With UNIX-Systems updates, patches and bugfixes can be be performed from their original sources and that means immediately with the date of their release as much as in the following example:
<BR><BR>
Checksum helps to prevent the download of trojans out of the internet.
<BR><BR>
Inceasing amount of data theft, Tagesschau, 07.04.2014<BR>
As IT-security-experts tell among other things in conjunction with lacks in security of OpenSSL, In year 2013 data of more than half billions internet-users have been stolen as a result of online-attacks. 552 million identities are involved, as told by a security-company about six &times; more than 2012.
<BR><BR>
Sueddeutsche.de, 21.12.2014 tells in a report, that you still can not trust cloud computing and the own data on other far-away-server. We believe not only in security risks of cloud computing, but also in data receiving consulting companies from there. Inspite of our excurs, on the base of some other operating systems there still were a need for security experts in 2014!
<BR><BR>
Tageschau, 28.04.2014 reports about actually found out one more serios hard security lack in Internet Explorer 6 up to 11 (market share value more than 50 %, 2012, .netApplications), so that XP, no further updates  available since 04.08.2014, still has to be updated and even USA advised to use other browser by so called country-protecting organizations. The troubles caused by such Internet Explorer versions would have been such big, that hacker could do harm a lot. Since the last weekend, Microsoft is looking for solutions. The security-whole conisted of a buggish memory-access that enabled users using the IE to gain access to computers to execute mailicious code and to gain control over the computer. This security-lack would have been already taken in use.
<BR><BR>
AOL email-accounts including security-requests also would have been hackened.
<BR><BR>
Yesterday Apple Apple warned against data theft due to a lack in security in OS-X. If an attacker is provided access to the same network as other users - for example the usage of abad protected WLAN-connection of a restaurant - he could be able to access data from email-transfer and other communication procedures (protocols), that should have been encrypted instead as already mentioned by Edward Snowden, his former organization would already have taken advantage upon it.. 
<BR><BR>
Not much can be done against fake accounts in the name of identity theft of oneself in the internet except by law. One should register oneself in the most popular social networks like facebook to make a contribute to avoid it. Such account should be suited with as few sensible data as possible and be visited regulary in this sense of maintenance.
<BR><BR>
We, Gooken, also notice, that norisbank (Deutsche Bank) gots certified many times for online banking by german certifiers like &quot;Stitung Warentest&quot;, although, as Tagesschau reported, states do invest billons more or less against such this security of encryption! In such cases UNIX-commands like &quot;tcptraceroute&quot; can provide users some important facts about such online-connections (as00.estara.com). Instead OpenSSL should strongly be updated from <a class="noflag" href="https://www.openssl.org/source/" title="udpate_openssl" target="mainsite">openssl.org</a> at least to version &gt;= 1.0.2d past 07.04.2014 ... as part of our DVD-2 mdv2010.0-updates!
<BR><BR>
<a class="noflag" href="links.php" target="mainsite" title="News">Such red marked text does not come to an end on our webside &quot;News&amp;Links&quot;, if it were not enough red... . Please click here!</a>
<A name="ENTSCHEIDENDE_IDEE">
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<img src="images/haekchen.png" ALT="OK" align="left" border="0">
<center><B>The essential Idea: &quot;PC-refrigerator&quot; through airodynamic</B></center>
<BR><BR>
might origin not from us, but is to do everything right at the beginning. Not software, but the exemplary, power-saving and therefore the net-adapter enburdening hardware depicted in our data sheed stands in the middle of interest here. To be more concrete, we talk about the computer tower itself, where everything should prepared for best air-cirulation. This cooling box (hardware-refrigerator) makes it possible to cool down warm air 3 up to 10 degree;C. All you need are one or better two cooler, one for the incoming air right up at the bottom of the front of the tower and one more for at the top of its back for the leaving of the air in a quit fast way. Therefore do not forget to seal the rest of the tower using plastic foils and adhensive tapes. Not only the circulating air but also the metal of the walls of the tower do also have the specifiation to increase the cooling of the inside. If possible, also follow the tip from fr2.rpmfind.net, where the tower of the server system consists of half-cylindered metal plate between the two coolers upon the mainboard. Screen resolution and screen repition rate should be set to &quot;auto&quot; following an almost large rate between 59 up to 95 Hz and higher. Now, the eye-friendly graphic chip can show what is performance especially during extrem burdening play of opengl- and sdl- based computer-games-scenes, while the stable hardware might do its work forever too.
<BR><BR>
<center><B>Mandriva Linux 2010 - The Calming</B></center>
<a name="SSD-OPT"></a>
<BR><BR>
Therefore you almost need:
<BR><BR>
2 SSD at least a 128 GB or 1 SSD or 1 (external) harddrive of thecapacity of at least the installation-SSD or -harddrive for the restauration and the backup<BR>
1 USB-memory stick with a command dd and the partitionmanager gparted providing rescure system, Mindi, Mondo or a DVD with Knoppix (that you can download out of the internet), best, following the manual howto install on harddrive, such Knoppix on a separte, small, greater or equal 250 MB partition on the installation-SSD or harddrive and<BR>
1 directory for all the already installed packages.
<BR><BR>
<IMG SRC="images/plcc-zange.JPG" Title="plcc-32" ALT="plcc-32" ALIGN="right">
<BR><BR>
<B>See, how Linux is prepared for the endurable <i>mouseclick-fast</i> work with SSD:</B><BR><BR>
Linux tips &amp; tricks<BR>
<B>Linux ready and optimized for SSD:</B> http://www.pcwelt.de/ratgeber/Linux-Special-SSDs-unter-Linux-6593528.html. The text of this webside is in german language, so we summarize, that we recommend the full-installation of Linux on SSD. Important seems to be the ability to trim the SSD, what can be checked out by the command &quot;hdparm -I /dev/sda | grep -i TRIM&quot;. In /etc/fstab <B>noatime,nodiratime,data=writeback</B> and eventually option <B>discard</B> should be set for the root-, home- and the temporary partition, for SWAP use commit=0,data=writeback,discard. commit stands for the period, data are written out of the cache onto SSD. Do not set it too high, not above 600. The last thing for the SSD to make work <i>mouseclick-fast</i> is the installation of the rpm-packages hdparm and sdparm for el7. Following an instruction for Debian, also set in /etc/crypttab the option &quot;allow-discards&quot; for dm-crypt and in /etc/lvm/lvm.conf the option &quot;allow-discards&quot; for LVM (we resigned from LVM), for Btrfs-filesystems also set the mount-option &quot;ssd&quot; in /etc/fstab. 
The read-access-time in MB/s can be find out by &quot;hdparm -t /dev/sda&quot; and<BR>
one more test still uses both options -t and -T, but also option --direct (&quot;Use O_DIRECT to bypass page cache for timings&quot;), what leads to direct read without page cacheing. This test is almost used, as the pure data flow to the SSD within two resp. three seconds is measured: &quot;hdparm -tT --direct /dev/sda&quot;<BR>
Check, if the started kernel does already recognize the SSD: cat /sys/block/sda/queue/rotational<BR>
If zero resp. 0, he does! If not, please follow reports like https://wiki.ubuntuusers.de/SSD/Scheduler/ <BR>
<BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">
Following this report, the IO-Scheduler can be chosen: noops, deadline or CFQ. cat /sys/block/sda/queue/scheduler shows the activated one in edged brackets. After performing tests like above, choose the right one, that is almost noops, especially deadline by Grub (analogous Grub2) entering in /boot/grub/menu.lst the option &quot;elevator=deadline&quot; past the kernel-options beginning with kernel=... and past ro resp. rw .
The Firmware-version is named by &quot;hdparm -iv /dev/sda&quot;<BR>
<BR><BR>
For TRIM-supporting SSD &quot;discard&quot; can be set not only in /etc/fstab and allow-discards not only in crypttab, but for ext4 also by command tune2fs:
<BR><BR> 
<img src="images/haekchen.png" ALT="OK" align="left" border="0">
<CENTER><TABLE BORDER="1" bgcolor="#15fb9b"><TR><TD>tune2fs /dev/device-filename resp. ( in the case of  LUKS-encryption) tune2fs -o discard /dev/mapper/container_filename</TD></TR></TABLE></CENTER>
<BR><BR>
This command makes the &quot;durable&quot; activation of the SSD-TRIM by option &quot;discard&quot; without blockings much more possible
<a name="READONLY">
<BR><BR>
<font color="green" style="font-size: 12pt"><B>Universal-Linux BULLET-PROOF: Root-partition read only</B></font><BR>
For the Root- and Home-Partition depending on conditons, we also can set the ro-Option for read-only, if we do not want to install and update anyhting anymore, do this by following the conditions of the arcticle from http://xpt.sourceforge.net/techdocs/nix/sysmng/sm08-ReadOnlyRootFileSystem/, https://wiki.debian.org/ReadonlyRoot, http://www.linuxfromscratch.org/hints/downloads/files/readonly_rootfs.txt and http://www.logicsupply.com/explore/io-hub/how-to-build-a-read-only-linux-system/  . Even think about the deactivation of the journalling of reiserfs by option &quot;nolog&quot;, that keeps the SSD from writing journals (that means logs of the last stable (error-free) state before errors occured, in order to restore in error-cases). More or less, setting root-partition read-only can be considered as useful, but a little bit &quot;<B>paranoid</B>&quot;:
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<img src="images/haekchen.png" ALT="OK" align="left" border="0">
&quot;<B>Read-only rootfs: Theory and Practice - Chris Simmonds, 2net</B><BR>
<font style="font-size: 9pt" color="green">
Configuring the rootfs to be read-only makes embedded systems more robust and reduces the wear on flash storage. In addition, by removing all state from the rootfs it becomes easier to implement system image updates and factory reset.<BR>
In this presentation, I show how to identify components that need to store some state, and to split it into volatile state that is needed only until the device shuts down and non-volatile state that is required permanently. I give examples and show various techniques of mapping writes onto volatile or non-volatile storage. To show how this works in practice, I use a standard Yocto Project build and show what changes you have to make to achieve a real-world embedded system with read-only rootfs. In the last section I consider the implications for software image update. Expect a live demonstration&quot;<BR>
https://www.youtube.com/watch?v=Nocs3etLs9
<BR><BR>
https://wiki.debian.org/<B>ReadonlyRoot</B> # (<B>usage at your own risk!</B>)<BR>
Preconditions<BR>
The FHS allows mounting all underneath /bin, /lib, /sbin and /usr read-only. But you can extend this much more by using different filesystems for some trees and take care for special files. <BR>
Locations that must be writable are /etc, /home, /srv, /tmp, /var. The hierarchies below /dev, /proc, /selinux and /sys are already handled by special filesystems. <BR>
For /tmp you can use a tmpfs filesystem or its own filesystem. For /var it&#180;s prefered to use its own filesystem. An example can look like this: <BR>
Device file Filesystem Mount point RO/RW<BR> 
/dev/sda1 ext2 / ro<BR>
/dev/sda2 ext3<BR>
/var rw <BR>
  —<BR>
  tmpfs /tmp rw<BR>
/var/local/home bind mount /home rw<BR>
/var/local/srv bind mount /srv rw<BR> 
You can use a filesystem without a journal for /, because you don&#180;t write there and you don&#180;t need the journal. This can be an ext4, too, hence you can take advantage of the improvements of ext4. Create the filesystem with mke2fs -t ext4 -O ^has_journal /dev/sda1 or remove the journal with tune2fs -O ^has_journal /dev/sda1.<BR> 
Special files in /etc<BR>
You have to take care for some files in /etc. These are<BR> 
<B>adjtime</B><BR>
because it&#180;s modified on boot up; see bug 156489<BR>
Solution for mdv and el6,el7: Change the hwclock-command in /etc/init.d/reboot and /etc/init.d/halt from &quot;hwclock --systohc&quot; to &quot;hwclock --systohc --adjfile=/var/local/adjtime&quot;.
<BR>
Solution for Debian Wheezy:<BR>
(1) add the option --noadjfile to HWCLOCKPARS in /etc/init.d/hwclockfirst.sh and /etc/init.d/hwclock.sh<BR> 
or <BR>
(2) fix /etc/init.d/hwclockfirst.sh by replacing -f by -L in &quot;if [ -w /etc ] &amp;&amp; [ ! -f /etc/adjtime ] &amp;&amp; [ ! -e /etc/adjtime ]; then&quot;; see 520606.<BR> 
alsa: init.d/<B>alsa-utils</B><BR>
All versions before alsa-utils/1.0.27.2-1 (&#64;2013-10-25 concerns wheezy version) of alsa-utils package startup script creates /.pulse files, leading to multiple error messages &quot;Failed to create secure directory&quot; when pulseaudio is installed.<BR> 
Relevant bug: 712980 <BR>
blkid.tab<BR>
because it&#180;s modified at runtime by libblkid1<BR> 
Solution:You can&#180;t create a symlink from /etc/blkid.tab to /var/local/blkid.tab because, unfortunately, libblkid1 will not honor this symlink. It will replace it on every write by a file, if the filesystem is mounted for writing (e.g. while doing an apt-get install). To work around this you must set the environement variable BLKID_FILE to /var/local/blkid.tab. You should do this in /etc/environment to set the variable for everybody, who might do mounting.<BR> 
courier imap<BR>
Courier IMAP uses a text file (<B>/etc/courier/shared/index</B>) for fast user lookups, if running as a mail server for virtual mailboxes (the default configuration of authenticating against pam is unaffected by this).<BR> 
If using virtual mailboxes with shared accounts the file will need to be moved elsewhere, the directory /var/cache/courier/shared/ would be suitable but will need to be manually created.<BR> 
Once that is done update /etc/courier/imapd and change IMAP_SHAREDINDEXFILE to IMAP_SHAREDINDEXFILE=/etc/courier/shared/index . <BR>
See http://www.courier-mta.org/imap/README.sharedfolders.html for information upstream provide about this setting. <BR>
cups<BR>
CUPS stores any kind of state files under <B>/etc</B> (classes.conf, cupsd.conf, printers.conf subscriptions.conf) and upstream is against any modification.<BR> 
Relevant bug: 549673 <BR>
lvm<BR>
Lvm stores a backup of current and archives of previous metadata in <B>/etc/lvm/{backup,archive}</B>. That causes any operation altering the metadata (vgreduce, vgextend, lvcreate, lvremove, lvresize, ...) to fail if / is not remounted read-write during the operation.<BR> 
Solution: The location of the backup and archives is specified in /etc/lvm/lvm.conf. Set backup_dir = "/var/backups/lvm/backup" and archive_dir = "/var/backups/lvm/archive", create /var/backups/lvm and move /etc/lvm/backup and /etc/lvm/archive there. <BR>
Note: Lvm normally creates a backup during boot. This no longer happens as it is smart enough to see that /var is not yet mounted (or still read-only). But unless you use cluster lvm you will always already have a current backup from the last time you changed the metadata. So no harm done. <BR>
Relevant bugs: 372207 562234 (for etckeeper behavior WRT LVM files see 462355)<BR> 
<B>mtab</B>
used by mount<BR> 
Solution: Create a symlink from /etc/mtab to /proc/self/mounts<BR> 
mount.cifs (before smbfs 2:3.4.3-1) doesn&#180;t honour this symlink and replace it with a real file; see 408394<BR> 
mtab is in /etc for historical reasons as per FHS 2.3. <BR>
network/run<BR>
Used by <B>ifupdown</B> up to Squeeze<BR> 
Solution: ifupdown links /etc/network/run to /run/network in postinst if /etc/network/run is not a directory.<BR> 
 rm -rf /etc/network/run<BR>
 dpkg-reconfigure ifupdown<BR>
Alternatively: Create a symlink from /etc/network/run to /lib/init/rw/etc-network-run (network/run is accessed by ifupdown init scripts before /var might be mounted, therefore, the abuse of /lib/init/rw) <BR>
Systems running Wheezy will be automatically moved to using /run/network no matter what their existing configuration was. <BR>
Relevant bug: 389996 <BR>
<B>nologin</B><BR>
modified on boot up by the initscripts bootmisc.sh and rmnologin<BR> 
This should already be a symlink to /var/lib/initscripts/nologin <BR>
In wheezy the init scripts directly modify /var/lib/initscripts/nologin <BR>
<B>resolv.conf</B><BR>
If you have only a static nameserver configuration, then there&#180;s no problem. Otherwise you should use the package resolvconf.<BR> 
<B>passwd, shadow</B><BR>
These files might be modified by the user with the tools chfn, chsh and passwd. If you are the only user of you system, you can remount the filesystem read/write, before using these tools. Otherwise you might think about using NIS or LDAP. <BR>
<B>samba/dhcp.conf</B><BR>
If the dhcp3-client (AKA isc-dhcp-client) package is installed, every time a DHCP connection is established, /etc/dhcp3/dhclient-enter-hooks.d/samba creates /etc/samba/dhcp.conf, no matter if it is used or not in /etc/samba/smb.conf. <BR>
Relevant bug: 629406 <BR>
<B>suck</B><BR>
suck puts files in /etc/suck which are modified by suck at runtime; see 206631 To work around this problem, you have to move /etc/suck/sucknewsrc* to a new directory /var/local/suck, create a symlink /etc/suck/suckkillfile to /var/local/suck/suckkillfile and set etcdir in get-news.conf to /var/local/suck (this sets the -dd option of suck) <BR>
<B>udev</B><BR>
If the udev rules 75-cd-aliases-generator.rules and 75-persistent-net-generator.rules are enabled, udev will try to update the files 70-persistent-cd.rules and 70-persistent-net.rules in /etc/udev/rules.d/ if needed. It is recommended to create the files once with all the rules needed and then disable the /etc/init.d/udev-mtab init script. While the root is readonly new rules are added to /dev/.udev/rules.d/.
<BR><BR>
Copy /var/lock or /var/lock/* to the mini-partition for /var. Do this also for kernel-partition /tmp or set /tmp to read-write. Copy /var/log/* to it too and link it to /tmp: &quot;ln -sf /tmp /var/log/*&quot;. 
<BR><BR>
Link the konqueror-browser-cache to /tmp: This means linking some cache-files of /home/user/.kde4 resp. /home/surfuser/.kde4 with the temporary /tmp one.
Enable readonly root<BR>
To make your root filesystem mounted readonly, you must edit your /etc/fstab and set the mount option ro.<BR> 
# /etc/fstab: static file system information.<BR>
#<BR>
# file system     mount point   fs-type  options               dump  pass<BR>
/dev/hda1           /               ext2    defaults,noatime,ro,errors=remount-ro       0 0<BR>
/dev/hda4           /var            ext3    defaults                0 2<BR>
The option noatime is useful while the disk is mounted read/write while updates.<BR>
https://wiki.debian.org/ReadonlyRoot, http://xpt.sourceforge.net/techdocs/nix/sysmng/sm08-ReadOnlyRootFileSystem/, http://www.linuxfromscratch.org/hints/downloads/files/readonly_rootfs.txt und http://www.logicsupply.com/explore/io-hub/how-to-build-a-read-only-linux-system/. <BR>
ext4 partition READ ONLY mounten - forum.ubuntuusers.de  <BR>
forum.ubuntuusers.de/topic/ext4-partition-read-only-mounten 
<BR><BR>
Next step: Deactivate journalling-feature of file systems like ext4 and reiserfs (reiserfs: nolog-option) and<BR>
disable filesystem-checks by tune2fs (ext4) resp. reiserfstune and by setting the fs-check-parameter for the root-partition to 0.
<BR><BR>
Now a correcture within /etc/rc.sysinit shall be done:<BR>
&quot;if remount_needed ; then<BR>
  action &quot;Remounting root filesystem in read-write mode: <B>&quot; mount -n -o remount,rw /</B><BR>
fi&quot;<BR>
nach<BR>
&quot;if remount_needed ; then<BR>
  action &quot;Remounting root filesystem in read-write mode: <B>&quot; mount -n -o remount /</B><BR>
fi&quot;<BR>
see https://bbs.archlinux.org/viewtopic.php?id=135943
<BR><BR>
At last the kernel-option &quot;ro&quot; should be entered in /boot/grub/menu.lst for grub, for example behind &quot;root=UUID...&quot;.</font>
<BR><BR>
Never mind or nevertheless, <B>If these steps for setting the root-partition read-only do not help, try the following article:</B> http://xpt.sourceforge.net/techdocs/nix/sysmng/sm08-ReadOnlyRootFileSystem/single/
<BR><BR>
Generally, the security level of software is not only presented by stability, but also by the freeness of errors and warnings during the compilation of their source codes listed by the compiler. Kernel-2.6.32 (el6) consits of many of them and most of them are caused by kmem.h, while kernel-5.4.110 (PCLinuxOS) with mkinitrd (pclos, rosa, mga2), nash (pclos, rosa, mga2), dracut (mga6: version 044, el6: version 004 (leads into manual LUKS-password request even in the case of existing password-key-file!, mdv2011: version 008)) and glibc (el8, pclos, mga6) resp. kernel-2.6.39.4-5.1 (mdv2011) runs error-free on our system without any warnings during the compilation time of around four hours! The only thing remaining is to patch with the dirty-cow-patch in mm.h and memory.c (listed in the internet).   You can get acutal patches for this kernel from see our section for updates.
<BR><BR>
After the installation of kernel-4.19 (pclos), lookout for the requirements and install missing ones like kmod (pclos): &quot;rpm -qi --requires kernel-4.19....&quot;.
<BR><BR>
<center><font style="font-size: 12pt"><B>New Kernel: Configuration and Installation out of its source</B></font></center>
<BR><BR>
<B>How to install a new kernel</B>: Download and install all binary packages (rpm resp. deb) required for the kernel. Then download and enpack the kernel-source-rpm into /usr/src either by &quot;tar -xvjf kernel-source-package&quot; or file-roller. A new directory named &quot;linux-kernelversion-xxx&quot; or &quot;kernel-source-xxx&quot; is created within /usr/src. <BR>
Link this new directory to a linking file named linux: &quot;ln -sf linux-xxx linux&quot; resp. &quot;ln -sf kernel-source-xxx linux&quot;.<BR>
Change into this directory linux resp. linux-xxx resp. kernel-source-xxxx and call &quot;menu oldconfig&quot;. A file .config is created to configure the kernel.<BR>
<BR><BR>
Set the Kernel-Version at the top of the makefile.
<BR>
Type &quot;menu xconfig&quot; or &quot;menu gconfig&quot; or &quot;make menuconfig&quot; and configure the kernel-drivers and so on needed (CC), needed as modules (CC MM) and such to resign from.
<BR><BR>
<B>FSE (full system encryption) prevents from chroots, mounts (see &quot;man mount&quot;) and bootups especially through systems on USB-sticks and from CD/DVD in order to read all kind of data from storage media like harddrives and memory (RAM) and data theft and so on.</B>
<BR><BR>
For FSE (full system encryption) by dracut, two options have to be enabled, what is already done in kernel-desktop (mdv2011) but not kernel (el6):<BR>
within the first item &quot;General Setup&quot;enable &quot;Initial-RAM-filesystem and RAM-disk-support&quot;and in &quot;general drivers&quot; enable the option &quot;Maintain a devtmpfs at /dev/ with subitem &quot;automount devtmpfs at /dev, after the kernel mounted the rootfs&quot;.<BR>
If you do not know, what to enable or not, choose MM to load as a module wherever possible.<BR>
<BR><BR>
Linus Tovald called the grsecurity-patches rubbish (PRO-LINUX, 2017, 2018):
<BR><BR>
http://rpmfind.rediris.es/rpm2html/suse-8.2/secumod-1.6e-91.x86_64.html<BR>
Nice description, but as far, as I know this kernelmodule does following.<BR>
The system is been protected by disallowing several things
<BR><BR>
- &#180;texec&#180;     : TPE protection (Trusted Path Execution, more on this later)<BR>
<BR><BR>
- &#180;procfs&#180;    : procfs protection
<BR><BR>
- &#180;hardlink&#180;  : hardlink create protection
<BR><BR>
- &#180;symlink&#180;   : symlink follow protection
<BR><BR>
- &#180;rawdisk&#180;   : rawdisk protection
<BR><BR>
- &#180;pipe&#180;      : Pipe (FIFO) protection
<BR><BR>
- &#180;trace&#180;     : process trace protection
<BR><BR>
- &#180;systable&#180;  : syscall table checking
<BR><BR>
- &#180;logging&#180;   : if you want logging, turn this on
<BR><BR>
- &#180;persist&#180;   : by default this is set to 0, so the module can be unloaded,
but you may set it to 1 to make it unremovable
<BR><BR>
- &#180;capbits&#180;   : set the capbits value. You have to supply a certain mode for
the capbits variable.
<BR><BR>
Hardlink/symlinkprotection protects the system from making this links for
users.<BR>
Persist sets a capability that the module cannot be unloaded.<BR>
Capbits are kernelbits, that define certain rights even for root - in normal<BR>
case root could do allmost anything.<BR>
Like in all cases you have to know, what you do, because with that module<BR>
loaded some processes will not have the full rights they need.<BR>
For example I tried a /proc protection module and hotplug freezed after that<BR>
(not funny).<BR>
There is no real desription of anything reguarding that module and I don&#180;t<BR>
know, which bits to set and which not!<BR>
Another thing is the opensource thing within that modules, because you can
only use them on SuSE (with some disadvantages you can use the<BR>
firewallscript on Debian and Red Hat).<BR>
It is allways a nice thing to make more a secret of a thing, than<BR>
describing, how it works.<BR>
Philippe<BR>
https://archive.cert.uni-stuttgart.de/suse-security/2003/09/msg00202.html
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><font style="font-size: 9pt" color="green"><B>grsecurity-patch - Components</B> (similar to <B>secumod</B>)</font>, en.wikipedia.org<BR>
kernel source: subdirecotry of /usr/src/kernel-version/, &quot;patch -p1 &lt; ../grsecurity.patch&quot;
<BR><BR>
<B>PaX</B>
<BR><BR>
A major component bundled with grsecurity is PaX. Among other features, the patch flags data memory, the stack, for example, as non-executable and program memory as non-writable. The aim is to prevent memory from being overwritten, which can help to prevent many types of security vulnerabilities, such as buffer overflows. PaX also provides address space layout randomization (ASLR), which randomizes important memory addresses to reduce the probability of attacks that rely on easily predicted memory addresses.<BR>
Role-based access control<BR>
Another notable component of grsecurity is that it provides a full role-based access control (RBAC) system. RBAC is intended to restrict access to the system further than what is normally provided by Unix access control lists, with the aim of creating a fully least-privilege system, where users and processes have the absolute minimum privileges to work correctly and nothing more. This way, if the system is compromised, the ability of the attacker to damage or gain sensitive information on the system can be drastically reduced. RBAC works through a collection of roles. Each role can have individual restrictions on what it can or cannot do, and these roles and restrictions form an access policy which can be amended as needed.<BR>
<font style="font-size: 9pt" color="green"><B>A list of RBAC features</B><BR>:
   Domain support for users and groups<BR>
    Role transition tables<BR>
    IP-based roles<BR>
    Non-root access to special roles<BR>
    Special roles that require no authentication<BR>
    Nested subjects<BR>
    Support for variables in the configuration<BR>
    And, or, and difference set operations on variables in configuration<BR>
    Object mode that controls the creation of setuid and setgid files<BR>
    Create and delete object modes<BR>
    Kernel interpretation of inheritance<BR>
    Real-time regular expression resolution<BR>
    Ability to deny ptraces to specific processes<BR>
    User and group transition checking and enforcement on an inclusive or exclusive basis<BR>
    /dev/grsec entry for kernel authentication and learning logs<BR>
    Next-generation code that produces least-privilege policies for the entire system with no configuration<BR>
    Policy statistics for gradm<BR>
    Inheritance-based learning<BR>
    Learning configuration file that allows the administrator to enable inheritance-based learning or disable learning on specific paths<BR>
    Full path names for offending process and parent process<BR>
    RBAC status function for gradm<BR>
    /proc/&lt;pid&gt;/ipaddr gives the remote address of the person who started a given process<BR>
    Secure policy enforcement<BR>
    Supports read, write, append, execute, view, and read-only ptrace object permissions<BR>
    Supports hide, protect, and override subject flags<BR>
    Supports the PaX flags<BR>
    Shared memory protection feature<BR>
    Integrated local attack response on all alerts<BR>
    Subject flag that ensures a process can never execute trojaned code<BR>
    Full-featured, fine-grained auditing<BR>
    Resource, socket, and capability support<BR>
    Protection against exploit bruteforcing<BR>
    /proc/pid filedescriptor/memory protection<BR>
    Rules can be placed on non-existent files/processes<BR>
    Policy regeneration on subjects and objects<BR>
    Configurable log suppression<BR>
    Configurable process accounting<BR>
    Human-readable configuration<BR>
    Not filesystem or architecture dependent<BR>
    Scales well: supports as many policies as memory can handle with the same performance hit<BR>
    No run-time memory allocation<BR>
    SMP safe<BR>
    O(1) time efficiency for most operations<BR>
    Include directive for specifying additional policies<BR>
    Enable, disable, reload capabilities<BR>
    Option to hide kernel processes<BR>
<BR><BR>
<B>Chroot restrictions</B><BR>
grsecurity restricts chroot in a variety of ways to prevent various vulnerabilities and privilege escalation attacks, as well as to add additional checks:<BR>
No attaching shared memory outside chroot<BR>
    No kill, ptrace (architecture-independent), capget, setpgid, getpgid and getsid outside chroot<BR>
    No sending of signals by fcntl outside chroot<BR>
    No viewing of any process outside chroot, even if /proc is mounted<BR>
    No mounting or remounting<BR>
    No pivot_root<BR>
    No double chroot<BR>
    No fchdir out of chroot<BR>
    Enforced chdir(&quot;/&quot;) upon chroot<BR>
    No (f)chmod +s<BR>
    No mknod<BR>
    No sysctl writes<BR>
    No raising of scheduler priority<BR>
    No connecting to abstract unix domain sockets outside chroot<BR>
    Removal of harmful privileges via cap<BR>
<BR><BR>
<B>Miscellaneous features</B><BR>
Among other things, it can be configured to audit a specific group of users, mounting/unmounting of devices, changes to the system time and date, and chdir logging. Some of the other audit types allow the administrator to also log denied resource attempts, failed fork attempts, IPC creation and removal, and exec logging together with its arguments.<BR>
Trusted path execution is another optional feature that can be used to prevent users from executing binaries not owned by the root user, or world-writable binaries. This is useful to prevent users from executing their own malicious<BR> binaries or accidentally executing world-writable system binaries that could have been modified by a malicious user.
grsecurity also hardens the way chroot &quot;jails&quot; work. A chroot jail can be used to isolate a particular process from the rest of the system, which can be used to minimise the potential for damage should the service be compromised. There are ways to "break out" of a chroot jail, which grsecurity attempts to prevent.<BR>
There are also other features that increase security and prevent users from gaining unnecessary knowledge about the system, such as restricting the dmesg and netstat commands to the root user.[13]<BR>
<B>List of additional features and security improvements:<BR>
   /proc restrictions that do not leak information about process owners<BR>
    Symlink/hardlink restrictions to prevent /tmp races<BR>
    FIFO restrictions<BR>
    dmesg restriction<BR>
    Enhanced implementation of trusted path execution<BR>
    GID-based socket restrictions<BR>
    Nearly all options are sysctl-tunable, with a locking mechanism<BR>
    All alerts and audits support a feature that logs the IP address of the attacker with the log<BR>
    Stream connections across Unix domain sockets carry the attacker&#180;s IP address with them (on 2.4 only)<BR>
    Detection of local connections: copies attacker&#180;s IP address to the other task<BR>
    Automatic deterrence of exploit brute-forcing<BR>
    Low, medium, high, and custom security levels<BR>
    Tunable flood-time and burst for logging</B><BR>
https://en.wikipedia.org/wiki/Grsecurity</font><BR><BR>
<B>Activate only those options, that will not lead into serious hard malfunctionings of the kernel!</B>
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><font style="font-size:12pt" color="green">Install <B>paxctld</B> (rpm or tarball from http://www.grsecurity.net)</font>
<BR><BR>
Save the new .config.<BR> 
Three possibilites, after the patching of the source-code (in our case the dirty-cow-patch): <BR>
make -i rpm (to create the binary kernel-rpm package, what endures on our system for around four hours)<BR>
make bzImage (to create its core vmlinuz for /boot only after renaming the created file bzImage: time needed: around 30 minutes) or<BR>
make bzImage &&amp;make modules &&amp;make modules_install for the installation of the kernel-modules too.
<BR>
Copy the bzImage to /boot, rename it to vmlinuz-kernelversion.<BR>
Use mkinitrd resp. in the case of FSE (Full Disk Encryption resp. encrypted root-partition) dracut to create the initrd resp. initramfs within directory /boot.<BR>
If you use grub as the bootloader and not grub2 and the configufile is still not configured for the new kernel, do this by editing /boot/grub/menu.lst and exchanging the vmlinuz-kernel-versions. If a new initramfs or initrd is created, enter them in the line for initrd.<BR>
done. 
<BR><BR>
In our /grub/menu.lst, quit the same for grub2, the resulting entry for FSE (Full System Encryption) performed according to by gentoo-Schnatterente is:<BR>
<font style="font-size: 9pt" color="green">
title dracut-mdv-008-Linux<BR>
password --md5 &#36;103Axa2112...<BR>
kernel (hd0,7)/vmlinuz BOOT_IMAGE=dracut-mdv-008-Linux root=UUID=2193ab... resume=UUID=2193ab... rootfstype=ext4 <B>elevator=deadline</B> nosmp security=none panic=0 apparmor=0 selinux=0 disable=IPV6 audit=0 hibernate=protect_image iomem=strict nosmp iomem=relaxed speedboot=yes KEYMAP=de LANG=de_DE.UTF-8 intel.audio=1 intel.modeset=1 intel.dpm=1 rd.luks=1 rd.lvm=0 rd.md=0 rd.luks.allow-discards rd.luks.uuid=ab1....vga=795 video=VGA-1:1366&times;768 tz=Europe/Berlin<BR>
initrd (hd0,7)/initramfs
<BR><BR>
0 of (hd0,7) stands for sda, 1 for sdb usw. and 7 for the boot-partition sda8, deadline for the SSD optimizing elevator resp. scheduler to choose, what is introduced soon through the configuraiton by special echo-commands.
<BR><BR>
Set resume=UUID=... from above to the UUID from root=UUID=... from above (UUID of the Luks-encrypted root-partition) ! Also eventually set the boot-parameter noinitrd.
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">
kernel.yama.ptrace_scope=3<BR>
# 0 - Default attach security permissions.<BR>
# 1 - Restricted attach. Only child processes plus normal permissions.<BR>
# 2 - Admin-only attach. Only executables with CAP_SYS_PTRACE.<BR>
3 - No attach. No process may call ptrace at all. Irrevocable.
<BR><BR>
echo &quot;kernel.yama.ptrace_scope=3&quot; &gt; /etc/sysctl.d/10-ptrace.conf
<BR><BR>
Boot-paramter-list:<BR>
http://redsymbol.net/linux-kernel-boot-parameters/2.6.39/
<BR><BR>
The rescue-system Knoppix (Debian Linux, in our case Wheezy ol&#180; stable i386 (32 bit) from year 2010 with partition-manager gparted and dd, browser iceweazel and many tools and software) copied from DVD to an extra partition of at least 250 MB is listed in /boot/grub/menu.lst of the bootmanager Grub as follows:<BR>
<BR><BR>
title Rescue<BR>
password....<BR>
root(hd0,4)<BR>
kernel /boot/isolinux/linux knoppix keyboard=de lang=de_DE.UTF-8 desktop=kde tz=Europe/Berlin<BR>
initrd /boot/isolinux/minirt.gz</font><BR>
boot
<BR><BR>
It boots within few seconds and makes password-request to make it run and to get decrypted from its partition. After the login, in order to decrypt all  the other LUKS-encrypted partitions, LUKS/dm-crypt should be installed, so at first packet cryptsetup has to be downloaded from the Debian-pool (debian.org). Update glibc too. If you want, you can update and/or increase this system up to a more comfortablel Debian Linux on an enlarged partition. 
<BR><BR>
Information about the availability of TRIM of a SSD for the TRIM with discard-option on the base of ext4 out of /etc/fstab: 
<BR><BR>
<CENTER><TABLE BORDER="1" bgcolor="#15fb9b"><TR><TD>hdparm -I /dev/sda | grep -i trim</TD></TR></TABLE></CENTER>
<BR><BR>
Our partition-concept for MCC-&quot; partition manager (local harddrives) or gparted upon parted,<BR>
our partiitions on SanDisk SSD 120 GB:<BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">
LUKS-(cryptsetup)-encrypted extra partition (for sensible data and so on, with a key-file, that means for automatic encryption and decryption): 29 GB<BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">
LUKS-(cryptsetup)-encrypted root-partition (&quot;schnatterschnatter - but no ente&quot;quot;): 50 GB<BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">
LUKS-(cryptsetup)-encrypted (urandomed self de- and encrypting) SWAP-partition: 1,9 GB (2 GB RAM)<BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">
Boot-partition (unencrypted, so that this partition should be backuped to compare files like kernel named vmlinuz with md5sum or sha1sum) : 203 MB<BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">
KNOPPIX-encrypted-partition Knoppix (rescue system from DVD, a up to year 2016 actualized Debian Ol&#180; Wheezy from year 2010  with gparted, dd and much more. LUKS (cryptsetup) should be installed additionally too for editing above listed other partitions): 894 MB<BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">
LUKS-(cryptsetup)-encrypted home partition (encrypted and decrypted automatically during boot by a once generated belonging key-file from the root-partition): 34 GB
<BR><BR>
Advantage: easy handling, without Logical Volume Management (LVM) !
<BR><BR>
This all 1:1 upon another securing media, in our case the same one and therefore one more SanDisk 120 GB.
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">
/etc/crypttab<BR>
# &lt;target name&gt; &lt;source device&gt;         &lt;key file&gt;      &lt;options&gt;<BR>
cryptohome UUID=.... /somewhere/keyfile luks,data=ordered,allow-discards<BR>
cryptswap /dev/sda_certain_number /dev/urandom swap,check=/bin/true,data=ordered,allow-discards
<BR><BR>
/boot/grub/menu.lst:<BR>
<font color="green" style="font-size: 9pt">setkey  y z<BR>
setkey  z y<BR>
setkey  Y Z<BR>
setkey  Z Y<BR>
setkey  equal parenright<BR>
setkey  parenright parenleft<BR>
setkey  parenleft asterisk<BR>
setkey  doublequote at<BR>
setkey  plus bracketright<BR>
setkey  minus slash<BR>
setkey  slash ampersand<BR>
setkey  ampersand percent<BR>
setkey  percent caret<BR>
setkey  underscore question<BR>
setkey  question underscore<BR>
setkey  semicolon less<BR>
setkey  less numbersign<BR>
setkey  numbersign backslash<BR>
setkey  colon greater<BR>
setkey  greater bar<BR>
setkey  asterisk braceright<BR>
timeout 10<BR>
password --md5 ...<BR>
default 0<BR>
kernel (hd0,7)/vmlinuz BOOT_IMAGE=linux root=UUID=c1... rd.luks.allow-discards rootfstype=ext4 nosmp elevator=deadline security=<B>none</B> nosmp speedboot=yes panic=0 <B>apparmor=0</B> iomem=strict hibernate=protect_image disable=IPV6 selinux=0 audit=0 KEYMAP=de LANG=de_DE.UTF-8 intel.audio=1 intel.modeset=1 intel.dpm=1 rd.luks=1 rd.multipath=0 rd.dm=0 rd.lvm=0 rd.md=0 rd.shell=0 rd.luks.uuid=3... video=VGA-1:1366&times;768 vga=795 tz=Europe/Berlin desktop=kde<BR>
initrd (hd0,7)/initramfs-4.9.49</font>
<BR><BR>
The root-partition seems to be sized quit small, so choose 60 GB instead of 50, we suggest to the disadvantage of the extra partition.
<BR><BR>
Order each entry in the device-configuration-file /etc/fstab: 1 device-file (partition or disc))/device/UUID/kernel-partition 2 mountpoint 3 filesystem 4 mount-options 5 Dump 6 fsck (self-check during the system start resp. boot), details:
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">
So in /etc/fstab we can set for ext4 (discard supported), ext3 (withoud discard), reiserfs (without discard), reiser4fs (discard), btrfs (discard), vfat (without discard):
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">root-partition: UUID=... / ext4 notail,noatime,nodiratime,barrier=flush,data=writeback,nouser,user_xattr,mode=500,async,commit=0,umask=077,iocharset=utf-8,acl 0<BR> 
<img src="images/haekchen.png" ALT="OK" align="left" border="0">Bootpartition (hier wegen dracut): UUID=... /boot ext4 noatime,nodiratime,ro,nouser,nouser,noexec,async,nosuid,mode=500,umask=077,user_xattr,data=writeback,commit=0,iocharset=utf-8,acl 0 3<BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">Home-Partition: /dev/mapper/cryptohome /home ext4 rw,suid,nodev,noexec,nosuid,auto,async,noatime,nodiratime,discard,data=writeback,commit=0,nouser_xattr,barrier=1,journal_checksum,mode=700,umask=077,errors=remount-ro,iocharset=utf-8 0 # automatic cryptsetup is recommended (cryptsetup-option --key-file): Only access over the root-partion with the stored key-file will be possible. Acess-rights for the key-file: chown root:root path_to_key_file/key.asc &amp;&amp; chmod 400 /patch_to_key_file/key.asc<BR>
# exec or noexec<BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"> /dev/cdrom /media/cdrom auto umask=0,users,noauto,iocharset=utf8,ro,noexec 0 0<BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">proc /sid-root/proc proc notail,noatime,nodiratime,noexec,rw,nodev,nosuid,nouser,data=writeback,mode=555,hidepid=2,gid=user,surfgroup,torgroup 0 0 # <B>mouseclick-fast</B><BR>
none /proc proc notail,noatime,nodiratime,noexec,rw,nodev,nosuid,nouser,data=writeback,mode=555 0 0<BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"># usbfs /proc/bus/usb usbfs rw,relatime,devgid=43,devmode=664,noexec 0 0 # if not already mounted during system boot; notice: MCC-Partiton-Manager and so on will miss /proc/bus/usb<BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">sysfs /sid-root/sys sysfs notail,noatime,nosuid,nodiratime,rw,noexec,nouser,nosuid,nodev,data=writeback,mode=555 0 0<BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">Temporary, <font color="green"><B>tmp ins RAM:</B></font>:<BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">tmpfs /tmp tmpfs noatime,nodiratime,noexec,ro,nodev,nouser,nosuid,mode=1777,size=8M 0 0 # original tmp, that was made hidden by firejail using option &quot;private-tmp&quot; within any /etc/firejail/config-files<BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">shm /tmp tmpfs noatime,nodiratime,noexec,rw,nodev,nosuid,nouser,mode=1777 0 0<BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">tmpfs /tmp2 tmpfs noatime,nodiratime,noexec,ro,nodev,nouser,nosuid,mode=1777,size=128M 0 0 # one more tmp for the down- and uploads<BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">shm /tmp2 tmpfs noatime,nodiratime,noexec,rw,nodev,nosuid,nouser,mode=1777 0 0<BR>
#SWAP:<BR> 
<img src="images/haekchen.png" ALT="OK" align="left" border="0">/dev/mapper/cryptswap swap swap defaults,discard,rw,data=writeback 0 0<BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">none /dev/pts devpts mode=620,gid=5,rw<BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">UUID=... /var/local ext4 rw,noatime,nodiratime,nosuid,aync,nodev,noexec,user_xattr,acl,barrier=1,data=writeback,mode=755,umask=077,commit=0,iocharset=utf8 # needed in small size of around 1 GB in order to mount the root-partition read-only<BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">binfmt /proc/sys/fs/binfmt_misc binfmt_misc rw,noatime 0 0 # binfmt_misc is a capability of the Linux kernel which allows arbitrary executable file formats to be recognized and passed to certain user space applications, such as s emulators and virtual machines. The executable formats are registered through a special purpose file system interface (similar to /proc). Debian-based distributions provide the functionality through an extra binfmt-support package.[1]...see https://en.wikipedia.org/wiki/Binfmt_misc<BR><BR>
securityfs /sys/kernel/security /mnt/any_mountpoint securityfs rw,noatime 0 0 # lsm, secure fs for kernel-security-modules ... or mount it within /etc/rc.local by &quot;mount -t securityfs -o rw,noatime /sys/kernel/security /mnt2&quot;<BR>
# and /etc/fstab of our USB-stick:<BR>
/dev/sda1 / unionfs 0 1
<BR><BR>
/dev/mapper/usbstick1 /media/mnt_usb1 vfat rw,nosuid,nodev,uhelper=hal,users,noexec,uid=10001,utf8,shortname=mixed,flush,umask=077 0 1 # An entry in /etc/crypttab only instead of both files fstab and crypttab is sufficient. LUKS-encrypted USB-memory-stick with UUID (you can find out by mount -l ) and name usbstick1 within /etc/crypttab. Also think about mounting this encrypted USB-stick without having to enterthe password for encryption manually each system boot by creating a key-file or using the already present one from cryptohome, adding this key-file to /etc/crypttab and assocating it with the USB-stick by the command &quot;cryptsetup luksAddKey /dev/sdc1 /path_to_keyfile/keyfile&quot;. Notice, that it might not be necessary to add this entry for an USB-memory stick in /etc/fstab here. Do this only in the case of problems with their hotplug!
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>/etc/fstab: Set the UUIDs instead of the named device-partitions</B>
Find out the UUIDs with the console-command &quot;blkid&quot; (this is not possible for the internal kernel-partitions). 
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>AHCI-Mode: BIOS-setup for SSD</B><BR>
Start the Bios- / Firmware-setup and look, if the AHCI-Modus (Advanced Host Controller Interface) for the SATA-adapter is active. Alternatively  &quot;RAID&quot; is possible too.<BR> 
You can almost find the option in the menu under &quot;Advanced -&gt; Integrated Peripherals&quot;, &quot;SATA Configuration&quot; or &quot;PCH Storage Configuration&quot;. Elder mainboard-platines do also have the option &quot;IDE&quot;, in order to increase the throughput of the harddrives, if not chosen. If there is provided only &quot;IDE&quot;, you must resign from the SATA-optimization.<BR>
On a side for overview (&quot;System Status&quot; or similar side) you almost find infomation about the SATA-Port the harddrives get connected. New motherboards only do have SATA-ports with fast 6 GBit/s (SATA III) and any port can be used. SATA II as much as SATA I fullfill our criteria to make all running mouseclick-fast.
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">
And in /etc/rc.local (started by adding &quot;sh /etc/rc.local&quot; from any activated bootscript of /etc/init.d/, followed by a system-restart) for optimized <B>SSD</B> (in our example on the first S-ATA-port named sda) we choose the following parameters after a check with &quot;hdparm -I /dev/sda&quot;: and &quot;man hdparm&quot;:
<BR><BR>
<font color="green" style="font-size: 9pt">hdparm -<B>W1a0A0</B> /dev/sda (also try other optimizing parameters of hdparm)<BR>
echo <B>deadline</B> &gt; /sys/block/sda/queue/scheduler<BR>
echo 500 &gt; /proc/sys/vm/dirty_writeback_centisecs<BR>
echo 20 &gt; /proc/sys/vm/dirty_ratio<BR>
echo 5 &gt; /proc/sys/vm/dirty_background_ratio<BR>
touch /var/lock/subsys/local</font>
<BR><BR>
SSD: commit=0: <B>mouseclick-fast</B>
<BR><BR>
Option <B>defaults</B> consists of the for security significant async,<B>nouser</B>,rw,<B>suid</B>,dev,exec,auto.
<BR><BR>
man mount: &quot;All  I/O to the filesystem should be done synchronously. In case of media with limited number of write cycles  (e.g.  some  flash drives) &quot;sync&quot; may cause life-cycle shortening.&quot; In other words, for SSD prefer option <B>async</B>!
<BR><BR>
The namely security advised option &quot;W0&quot; instead of elected W1 deactivates the write-cache of the SSD, what protects data even more in the case of system hangons and breakdowns. More parameters of hdparm are explained by &quot;hdparm -h&quot; and manpages, see &quot;man hdparm&quot;.Notice, that for more performcance &quot;W1&quot; for <B>write-cacheing</B> is generally recommended.
<BR><BR>
The pair of number from above like &quot;0 1&quot; stands for dump equal to no and fsck equal to yes, while the number itself stands for 0 none (no check), 1 recommended for the root-partition, 2 for all other partitionss and 3 for all less important partitions. With these setting, named filesystem can not be damaged anymore, otherwise, if ever thinkable, use manually &quot;reiserfsck --no-tree device_file&quot; to do its best for reiserfs. 
<BR><BR>
<B>umask</B>: generally sets the access-rights as a subtrahend: Set umask 022 standing for less or equal 755 resp. umask 077 for less or equal 700 for the root- and home-partition in /etc/fstab and also in: /etc/profile, /etc/login.defs, /home/user/.bash_profile, /home/surfuser/.bash_profile, /root/.bash_profile, ROOT_UMASK=077 in /etc/security/msec/level.secure and USER_UMASK=077; acl: enable POSIX Access Control Lists. 
<BR><BR>
Keep everything as SSD-friendly and mouseclick-fast you can, link the browser-cbache of Konqueror to the temporary directory /tmp being part of shm (shared memory, RAM) from fstab above:
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">rm -df /home/surfuser/.kde4/cache-localhos and ln -sf /tmp /home/surfuser/.kde4/cache-localhost, /home/surfuser/tmp, /home/user/.kde4/cache-localhost, /home/user/.kde4/socket-localhost, /home/user/.kde4/tmp, /home/user/.kde4/tmp-localhost and 
<BR><BR>
ln -sf /tmp/kde-user /home/user/.kde4/tmp-localhost.localdomain, ln -sf /tmp/kde-surfuser/.kde4/tmp-localhost.localdomain . In the long run this spares plenty of cleaning. Do not link cache-localhost.localdomain and socket-localhost.localdomain, as this might cause some problems starting KDE.
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">ln -sf /tmp /home/alluser/.cache2 &amp;&amp; rm -dfr /home/alluser/.cache &&amp;rename /home/alluser/.cache2 /home/alluser/.cache /home/alluser/.cache2  
<BR><BR>
bleachbit (el6, cleaner): This program can cause serious hard damage! 
<BR><BR>
We go on for SSD: Option discard is not functioning each kernel and SSD. commit sets the interval or frequency for write-operations, what is 5s per default. It is not recommended to change this value. barrier is one more feature of ext4 and ext3 caring for writing (coherent) data right in front of a barrier before such coherent data are writtten behind it. barriers=1 effects more securirty, while barriers=0 contributes to more perfmormance. ro for read-only still should not be set for the root-partition. This would have caused &quot;skipping journal replay&quot;. data=writeback means &quot;Data ordering (data=ordered) is not preserved, data may be written into the main file system after its metadata has been committed to the journal.&quot;, <font color="green"><B>options see http://www.mjmwired.net/kernel/Documentation/filesystems/ext4.txt#169</B></font> . Most options are accepted by ext3 too, but not reiserfs. Notice, that reiserfs does not accept all of the listed options like barrier, errors and discard, inspite of this option nolog is accepted. Test options by &quot;mount -o options devicefile mountpoint&quot;, before they are set in /etc/fstab!
<BR><BR>
rpm-description cmospwd (el6): &quot;CmosPwd decrypts password stored in cmos used to access BIOS SETUP. Works with the following BIOSes * ACER/IBM BIOS * AMI BIOS * AMI WinBIOS 2.5 * Award 4.5x/4.6x/6.0 * Compaq (1992) * Compaq (New version) * IBM (PS/2, Activa, Thinkpad) * Packard Bell * Phoenix 1.00.09.AC0 (1994), a486 1.03, 1.04, 1.10 A03, 4.05 rev 1.02.943, 4.06 rev 1.13.1107 * Phoenix 4 release 6 (User) * Gateway Solo - Phoenix 4.0 release 6 * Toshiba * Zenith AMI With CmosPwd, you can also backup, restore and erase/kill cmos.&quot;
<BR><BR>
So at first, generally the best thing one can do, is to abrogate the complete internet-access (what we do not suppose...) and to get a spare-parted backup-SSD or harddrive for the case of all the on mdv2010 remaining unsolved dependencies of packages your are going to install, that means in order to 
<BR><BR>
Browser-Cache into RAM<BR>
about:config -&gt;, to add a new entry type string <BR>
with the value /shm<BR>
After a newstart, firefox is cached into RAM. Go quit the same way for other browsers, source: http://wiki.siduction.de/index.php?title=Solid_State_Disks_(SSDs)_unter_Linux_optimal_nutzen&printable=yes. For Konqueror just link directory /home/username/.kde4/localhost-cache to /shm. 
<BR><BR>
Convince yourself to get gnutls (el7) with libtasn1 (el7) installed. Otherwise gnutls might not work correctly for firefox.
<BR><BR>
<CENTER><TABLE BORDER="1" bgcolor="#15fb9b"><TR><TD><font color="red" style="font-size:12pt">backup partitionwise 1:1 by command dd (details see below)</font></TD></TR></TABLE></CENTER> 
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Flashrom, Coreboot</B><BR>
Have a second BIOS-chip. Save the actual BIOS-firmware of the used BIOS-chip into a bin(ary) resp. rom-file. This can be done by an utility from the disc with drivers for the mainboard, out of the internet or by the UNIX-(Linux)-program called <A class="noflag" HREF="http://flashrom.org/Flashrom" target="_TOP" title="flashrom"><font color="green">flashrom</font></A>. flashrom  is  a  utility  for  detecting, reading, writing, verifying and erasing flash chips. It&#180;s often used to flash BIOS/EFI/coreboot/firmware images in-system using  a  supported  mainboard,  but  it  also supports flashing of network cards (NICs), SATA controller cards and other external devices, which can program flash chips. On malfunction especially after the powering on of the computer, you can flush the BIOS through the backup up right from the desktop, if not, you have to exchange the chip or the net-adapter, same for the RAM, that can be checked by progs of UNIX (Linux) like <font color="green">memtest</font>. For the protection against wiretapping bedbugs care for &quot;<font color="green">chassis intrusion detection</font>&quot;, for the usage of as few USB-cards as possible, if the BIOS is resetted and if there are any hearable feedbacks from hardware inspite of FCC. Compare constructions and notice any specifications direct from the platines like the manufacturer-types or -ID . With some luck, a radio tunes their frequencies.
<BR><BR>
&quot;Welcome to <B>coreboot</B>!<BR>
coreboot is an Open Source project aimed at replacing the proprietary BIOS (firmware) found in most computers. coreboot performs a little bit of hardware initialization and then executes additional boot logic, called a payload. 
With the separation of hardware initialization and later boot logic, coreboot can scale from specialized applications that run directly from firmware, run operating systems in flash, load custom bootloaders, or implement firmware standards, like  PC BIOS services or  UEFI. This allows for systems to only include the features necessary in the target application, reducing the amount of code and flash space required. <BR>
coreboot currently supports over 230 different mainboards. Check the Support page to see if your system is supported.&quot;<BR>
https://www.coreboot.org/Welcome_to_coreboot<BR>
https://www.coreboot.org/Supported_Motherboards
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">
<center><B>Password-protection</B></center>
<BR><BR>
<font color="green" style="font-size:12pt"><B>If Linfw3 is used, so that root and all other user except a special surfuser get blocked, and if all other methods introduced here on this webside are performed, no password hacking and cracking is ever possible anymore, even not after the password got known by other ones and independent from its name or constitution or who and whatever, neither from the outside (net), inside (software) nor direct at office or home or anywhere. Keys for the LUKS-encrypted partitions must be stored on a portable USB-memory-stick, better memory-/chip-card or fingerprint-scanner</B></font>
<BR><BR>
Password-protection on our introduced exemplary system:<BR>
BIOS-password<BR>
Grub-md5-Password for all bootable partitions and memory-check within /boot/grub/menu.lst<BR>
Special (own) inportable password for always LUKS-encrypted partitions on the base of FSE (Full System Encryption) with keys (passwords) for the dracut-enbound root-Partition on a LUKS-password encrypted USB-memory-stick, rest (see 
exemplary listed /etc/fstab) as sha2-key-file for user:group root:root and chmod 400 within any directory of the root-partition<BR>
Secured LUKS-root-partition with manual password-login onto a separate storage media for the cass of data loss from USB-memory-stick etc.<BR>
ACL-locked su-login for &quot;surfuser&quot;<BR>
Keys (passwords) for the additional encryption of e-mail and single directories and files with gnupg (kgpg) within the for &quot;surfuser&quot; by ACL inaccessible made directory .gnupg<BR>
desktop-manager: user-password for kdm and other desktop manager (or simplefying automized login free from password-entry)<BR>
Passw&ouml;rds for LUKS-encrypted USB-memory-sticks<BR>
Password-manager for the twice password-encrypted access storage for all other passwords: revelation (el6, el7, rosa2014.1, rosa2016.1, fc 2X)<BR>
/etc/shadow (password-)file: chown root:root and chmod 400<BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">inacccessible shell-bash-login in /etc/passwd and eventually usage of sandbox firejail with option &quot;shell none&quot;
<BR><BR>
<font color="green" style="font-size: 12pt"><B>Password protection</B></font>, Focus, 11.04.2015<BR>
Snowden meant, hacker could hack a primitive password within one second. But the whistleblower gives tipps, how to keep passwords safe, so that they can not be hacked: by passphrases. Most passwords are simple variants like &quot;12345678&quot;, &quot;password&quot; or the forename of the user. Edward Snowden thinks, passwords with the length of eight characters still do remain very insecure. They could be hacked by supercomputers in less than one second. Passphrases are passwords consisting of more than one word. Long, one time appearing sentences like 
<BR><BR>
<CENTER><TABLE BORDER="1" bgcolor="#15fb9b"><TR><TD><font color="black" style="font-size:12pt">angelamerkelist110%SEXY</font></TD></TR></TABLE></CENTER> 
<BR><BR>
are easy to remember and  combine different characters. They could not be decrypted by hacking programs.
<BR><BR>
A similar uncrackable method for password generation is described by PCWelt.de on http://www.pcwelt.de/ratgeber/So-erstellen-und-merken-Sie-sich-wirklich-sichere-Passwoerter-ohne-Zusatz-Tools-9940466.html .
<BR><BR>
<font color="green" style="font-size: 12pt"><B>Expert explains: The perfect password would be cracked by hackers in 227 millionen years</B></font>, FOCUS Online, 09.05.2018<BR>
https://www.focus.de/digital/videos/geheimnis-liegt-in-drei-worten-experte-erklaert-hacker-wuerden-227-millionen-jahre-fuer-dieses-passwort-brauchen_id_7744168.html
<BR><BR>
Passwords are stored in the, as we hope, only root-accessible /etc/shadow for Linux. This file is handled over /etc/passwd listing usernames, belonging groups, &quot;x&quot; as a replacement for the password to read-in and so on.
<BR><BR>
<table border="1" summary="general security"><tr><td><font style="font-size:12pt"><B>All sensible data should never be stored on the onboard resp. plugged-in storage-media, SSD and harddrives and only onto those unplugged ones containing the backups and onto well-encrypted USB-memory-sticks!</B></font></td></tr></table>
<BR><BR>
More Internet Security<BR>
<B>pam_shield</B> (el6): pam_shield is a PAM module that uses iptables to lock out script kiddies that probe your computer for open logins and/or easy guessable passwords. pam_shield is meant as an aid to protect public computers on the open internet. An IP can also be entered manually by the command shield-trigger add 122.22.1.2 into the belonging database, same through &quot;del&quot; for deletion..pam_shield should get configured in /etc/security/shield.conf. 
<BR>
<B>fail2ban</B> (el6): Fail2ban scans log files like /var/log/pwdfail or /var/log/apache/error_log and bans IP that makes too many password failures. It updates firewall rules to reject the IP address.
<BR><BR>
<B>DenyHosts</B> is a Python script that analyzes the sshd server log messages to determine which hosts are attempting to hack into your system. It also determines what user accounts are being targeted. It keeps track of the frequency of attempts from each host and, upon discovering a repeated attack host, updates the /etc/hosts.deny file to prevent future break-in attempts from that host. Email reports can be sent to a system admin.
<BR><BR>
If you beware this principle, the computer generally provides the promised security for you.
<BR><BR>
Of course we tested and possess MS Windows. As we all know, it is not sufficient just to install an operating system and security-software to call the computer-system really secure, while finding out, that effective solutions may cost time! <font color="green">Installation should be done by users with the rights of the system-administrator only. During installation the signatur helps to be aware of the origin of software.</font> Before the installation itself, packet-manager <font color="green">check out dublications and dependencies</font>. If a packet is ever missing, <font color="green">packet-manager like urpmi can download and install all needed packages from different sources and the internet. to solve them</font>. After that, version-control by CVS (Version Controlling Systems) can also do their best. The packet-database seems to be similar to the MS-Win-registry, but it is not such complex. <font color="green">If the packet-database should ever be damaged, it can be repaired in a simple way by the commands rm -f /var/lib/rpm/__* and rpm --rebuilddb. If this should not help, start the MCC packet-manager rpmdrake, in order to install any packet. rpmdrake is almost able to solve such conflicts.</font> Notice, that MCC&#180;s downloaded files are at least temporary in directory /var/cache/urpmi/rpms. Not all of the infinite amount of packet-dependencies are solved, even not in mdv2010!
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left"><font color="green" style="font-size: 12pt"><B>How to Rebuild Corrupted RPM Database in CentOS</B></font>, Aaron KiliJune 1, 2018 Categories CentOS 3 Comments<BR>
The RPM database is made up of files under the /var/lib/rpm/ directory in CentOS and other enterprise Linux distributions such as RHEL, openSUSE, Oracle Linux and more.<BR>
If the RPM database is corrupted, RPM will not work correctly, thus updates cannot be applied to your system, you encounter errors while updating packages on your system via YUM package manager. The worst case scenario is being unable to run any rpm and yum commands successfully.<BR>
There are a number of factors that can lead to the RPM database corruption, such as incomplete previous transactions, installation of certain third-party software, removing specific packages, and many others.<BR>
In this article, we will show how to rebuild a corrupted RPM database; this way you can recover from an RPM database corruption in CentOS. This requires root user privileges, otherwise, use the sudo command to gain those privileges.<BR>
First start by backing up your current RPM database before proceeding (you might need it in the future), using the following commands.<BR>
# mkdir /backups/<BR>
# tar -zcvf /backups/rpmdb-&#36;(date +"%d%m%Y").tar.gz  /var/lib/rpm<BR>
Next, verify the integrity of the master package metadata file /var/lib/rpm/Packages; this is the file that needs rebuilding, but first remove /var/lib/rpm/__db* files to prevent stale locks using following commands.<BR>
# rm -f /var/lib/rpm/__db*<BR>
# /usr/lib/rpm/rpmdb_verify /var/lib/rpm/Packages<BR>
In case the above operation fails, meaning you still encounter errors, then you should dump and load a new database. Also verify the integrity of the freshly loaded Packages file as follows.<BR>
# cd /var/lib/rpm/<BR>
# mv Packages Packages.back<BR>
# /usr/lib/rpm/rpmdb_dump Packages.back | /usr/lib/rpm/rpmdb_load Packages<BR>
# /usr/lib/rpm/rpmdb_verify Packages<BR>
Now to check the database headers, query all installed packages using the -q and -a flags, and try to carefully observe any error(s) sent to the stderror.<BR>
# rpm -qa &gt;/dev/null    #output is discarded to enable printing of errors only<BR>
Last but not least, rebuild the RPM database using the following command, the -vv option allows for displaying lots of debugging information.<BR>
# rpm -vv --rebuilddb<BR>
Now to check the database headers, query all installed packages using the -q and -a flags, and try to carefully observe any error(s) sent to the stderror.<BR>
# rpm -qa &gt;/dev/null    #output is discarded to enable printing of errors only<BR>
https://www.tecmint.com/rebuild-corrupted-rpm-database-in-centos/<BR>
Read Also: 20 Practical Examples of RPM Command in Linux: https://www.tecmint.com/20-practical-examples-of-rpm-commands-in-linux/
<BR><BR>
Indeed: Our experience in mdv2010 tells us, that the only weak point grounds still in the overwhelming amount of existing packet-dependencies during an intensive installation of packages online (with a high amount of packages) by rpmdrake from MCC (drakconf) quit &quot;at once&quot; of a complexity much higher than from installation-DVD. Therefore we recommend not to download too many packets, not more than 50 &quot;at once&quot; and to have a look into the directory /var/lib/urmpi/rpms, where the not installed packages are still stored, if MCC is set to &quot;do not empty the packet-cache after download&quot; before. Then error-messages of the reinstallation by packet-manager like rpm, urpmi and yum almost tell what to do next - if there is inspite of checks of rpmdrake within the packet still any rpm, especially library-rpm, missing or if one rpm conflicts with another one to delete it before reinstallation is possible.
<BR><BR>
We repeat: agesschau, 07.31.2014: Actually scientific experts found out, that sensible data can be read out through  microcontrollers (processors) from USB-sticks, see the report from our linkside under the point links! Therefore a new USB-standard is devoloped. By this, all data of computers can be read out, even passwords and email-contents as much as devices be steered like webcams. The operating sytem does not notice all of this, as it believes in key-strokes and not software attacks.
<BR><BR>
<center><B><i>mouseclick-fast</i></B></center>
<BR><BR>
Mouseclick-fast: We almost have just the following <B>services activated</B> through MCC: NetworkManager, acpid, alsa, cups, dnsmasq, gpm, ip6tables, iptables, jexec, linfw3, lm_sensors, partmon, postfix, sound, sysstat, udev-post, uuidd, wine and sometimes ntpd and httpd.
<BR><BR>
That&#180;s all. So service network got deactivated too by command &quot;chkconfig --level 2345 network off&quot;.
<BR><BR>
Increase the surf-speed with the browser, press STRG and ESC, choose the process for the browser by right clicking onto him and pull the appearing shift register for the process-priority at least one quarter length right. Alternatively use the terminal-commands nice and renice for a priority between -20 and 19 incl., default is 0 (source. Focus Onine, 07.11.2015); 
Gooken recommends extrem high priorities for Dolphin, Kmail, Kontact, Kopete, Office, some OpenGL- and SDL-games (if useful) and Konqueror and/or any other browser, 
<a name="FIREJAIL">
<BR><BR>
<center><B>Brake block and espionage: &quot;root,-1&quot;, ( dangerous, speed lowering ) (system-)process named <i>unknown</i> (for login under uid:0) of owner &quot;root,-1&quot; with changing PID and unknown dimesioned CPU-enburdening &quot;kept secret&quot;</B></center>
<BR><BR>
In advance, this might really help: <B>setfacl -m u:root:- /usr/libexec/gam_server</B><BR>. Also exchange gamin (mdv2010) with gamin (pclos2017).
<BR><BR>
http://stackoverflow.com/questions/13655110/how-to-kill-a-process-whose-pid-keeps-changing:<BR>
Such a process is called a &quot;comet&quot; by systems administrators.<BR>
The process group ID (PGID) doesn&#180;t change on fork, so you can kill it (or SIGSTOP it) by sending a signal to the process group (you pass a negated PGID instead of a PID to kill).<BR>
answered Dec 1 &#180;12 at 1:18<BR> 
caf<BR> 
161k18208340<BR> 
What if it calls setpgid/setsid each time too? :-) - R.. Dec 1 &#180;12 at 2:28<BR> 
The only reason, I can see, why you wouldn&#180;t see it is, that the forked child has not been created yet but the parent has progressed far enough in it&#180;s death that it is no longer listed.<BR> 
Unfortunately I don&#180;t think it&#180;s possible to kill this kind of process without some guessing. To do so would require knowing the next pid in advance. You can guess the next pid but not be certain that no other pid gets it assigned.
<BR><BR>
We generally want to get rid of such processes: Wait for our new experiences at this place! Mouseclick-fast and secure: the ultimative speed boost beneath SSD-technology from see data-sheed: At first, update the gam_server (gamin (fc25) and gamin-server (OpenSuSE13.2) with gam_server into /usr/libexec) or remove it (like in OpenSuSE, where gamin is not offered), that might has to do with it and never connect to the ISP (Internet Service Provider) using the NetworkManager (el6) together with networkmanager-applet (mdv2010.2), but through &quot;ifup eth0&quot; by surfuser (but without naming surfgroup) instead, maybe out of the K-Menu, in the case of Konqueror for example set:
<BR><BR>
<CENTER><TABLE BORDER="1" bgcolor="#15fb9b"><TR><TD><font color="black"> renice -n 18 &#180;pidof konqueror&#180;</font></TD></TR></TABLE></CENTER>
<BR><BR>
that means for surfuser joining surfgroup in order to start konqueror after the login to surfuser:
<BR><BR>
<CENTER><TABLE BORDER="1" bgcolor="#15fb9b"><TR><TD><font color="black">&quot;knemo &amp;&amp; sg surfgroup konqueror &amp;&amp; renice -n 18 &#180;pidof konqueror&#180; &amp;&amp; kded4&quot;</font></TD></TR></TABLE></CENTER>
<BR><BR>
rpm-description: &quot;Run command in restricted environment. Chrootuid makes it easy to run a network service at low privilege level and with restricted file system access. At Eindhoven University, they use this program to run the gopher and www (world-wide web) network daemons in a minimal environment: The daemons have access only to their own directory tree, and run under a low-privileged userid. The arrangement greatly reduces the impact of possible loopholes in daemon software.&quot;
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">
Or additionally on the base of the suid-sandbox<B>firejail</B> (ram80: 0.9.44.8-1, rosa2014.1, rosa2016.1, pclos2017 or https://sourceforge.net/projects/firejail/) for all programs online and untrusted (following the includes, that might be some, we chose firejail for quit all), one more program for mdv2010.2 or el6 from rosa2014.1, that you also can download from here:
<BR><BR>
<A class="noflag" href="https://sourceforge.net/projects/firejail/files/firejail/" title="firejail-0.9.52-1pclos2017.x86_64.rpm">
firejail-0.9.52-1pclos2017.x86_64.rpm (from December 2017, vendor:none, pbone.net)</A><BR>
or <A class="noflag" href="universal-linux.php#firejail" title="firejail-0.9.52-1pclos2017.x86_64.rpm" target="mainsite"><B>download firejail pclos2017 preconfigured by us for firefox, Konqueror and kmail and so on from our update-section preconfigured by us for firejail-0.9.52-1.</B></A>
<BR><BR>
<BR><BR>
<CENTER><TABLE BORDER="1" bgcolor="#15fb9b"><TR><TD><font color="black">&quot;knemo &amp;&amp; sg surfgroup &quot;<B>firejail --private=/home/surfuser</B> konqueror&quot; &amp;&amp; renice -n 18 &#180;pidof konqueror&#180; &amp;&amp; kded4&quot;</font></TD></TR></TABLE></CENTER>
<BR><BR>
or, enhanced with option --profile:
<BR><BR>
<CENTER><TABLE BORDER="1" bgcolor="#15fb9b"><TR><TD><font color="black">&quot;knemo &amp;&amp; sg surfgroup &quot;<B>unshare firejail --nice=18 --profile=/etc/firejail/konqueror.profile --private=/home/surfuser</B> konqueror&quot; &amp;&amp; kded4&quot;</font></TD></TR></TABLE></CENTER>
<BR><BR>
This call seems to get quit long, so for a start with priority 18 from -20 up to 20 by a single (or double) mouseclick do not forget to add an this command into the belonging entry for konqueror within the k-menu, on the desktop or in the quick-starter of the taskline. For shell-scripts this can be done by &quot;xterm -e /path_to/shellscript.sh&quot; resp. &quot;konsole -e /path_to/shellscript.sh&quot;
<BR><BR>
Linux namespaces sandbox program firejail, https://sourceforge.net/projects/firejail/<BR>
<cite>&quot;Firejail is a SUID program that reduces the risk of security breaches by restricting the running environment of untrusted applications using Linux namespaces and seccomp-bpf. It allows a process and all its descendants to have their own private view of the globally shared kernel resources, such as the network stack, process table, mount table.<BR>
Written in C with virtually no dependencies, the software runs on any Linux computer with a 3.x (and 5.4.110 with mkinitrd (pclos, rosa, mga2), nash (pclos, rosa, mga2), dracut (mga6: version 044, el6: version 004 (leads into manual LUKS-password request even in the case of existing password-key-file!, mdv2011: version 008)) and glibc (el8, pclos, mga6) resp. 2.6.39.4-5.1, com., Gooken) kernel version or newer. The sandbox is lightweight, the overhead is low. There are no complicated configuration files to edit, no socket connections open, no daemons running in the background. All security features are implemented directly in Linux kernel and available on any Linux computer.<BR>
Firejail can sandbox any type of processes: servers, graphical applications, and even user login sessions. The software includes security profiles for a large number of Linux programs: Mozilla Firefox, Chromium, VLC, Transmission etc.&quot;</cite>
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">
Firejail is a SUID sandbox program, that reduces the risk of security breaches by restricting the running environment of untrusted applications using Linux namespaces.
<BR><BR>
<font style="font-size: 9pt">
firejail - version 0.9.48
<BR><BR>
Options:<BR>
    -- - signal the end of options and disables further option processing.<BR>
    --allow-debuggers - allow tools such as strace and gdb inside the sandbox.<BR>
    <img src="images/haekchen.png" ALT="OK" align="left">--allow-private-blacklist - allow blacklisting files in private<BR>
        home directories.<BR>
    --allusers - all user home directories are visible inside the sandbox.<BR>
    --apparmor - enable AppArmor confinement.<BR>
    --appimage - sandbox an AppImage application.<BR>
    --audit[=test-program] - audit the sandbox.<BR>
    --bandwidth=name|pid - set bandwidth limits.<BR>
    --bind=dirname1,dirname2 - mount-bind dirname1 on top of dirname2.<BR>
    --bind=filename1,filename2 - mount-bind filename1 on top of filename2.<BR>
    --blacklist=filename - blacklist directory or file.<BR>
    -c - execute command and exit.<BR>
    --caps - enable default Linux capabilities filter.<BR>
    <img src="images/haekchen.png" ALT="OK" align="left">--caps.drop=all - drop all capabilities.<BR>
    --caps.drop=capability,capability - blacklist capabilities filter.<BR>
    --caps.keep=capability,capability - whitelist capabilities filter.<BR>
    --caps.print=name|pid - print the caps filter.<BR>
    --cgroup=tasks-file - place the sandbox in the specified control group.<BR>
    --chroot=dirname - chroot into directory.<BR>
    --cpu=cpu-number,cpu-number - set cpu affinity.<BR>
    --cpu.print=name|pid - print the cpus in use.<BR>
    --csh - use /bin/csh as default shell.<BR>
    --debug - print sandbox debug messages.<BR>
    --debug-blacklists - debug blacklisting.<BR>
    --debug-caps - print all recognized capabilities.<BR>
    --debug-check-filename - debug filename checking.<BR>
    --debug-errnos - print all recognized error numbers.<BR>
    --debug-protocols - print all recognized protocols.<BR>
    --debug-syscalls - print all recognized system calls.<BR>
    --debug-whitelists - debug whitelisting.<BR>
    --defaultgw=address - configure default gateway.<BR>
    <img src="images/haekchen.png" ALT="OK" align="left">--dns=address - set DNS server.<BR>
    --dns.print=name|pid - print DNS configuration.<BR>
    --env=name=value - set environment variable.<BR>
    --force - attempt to start a new sandbox inside the existing sandbox.<BR>
    --fs.print=name|pid - print the filesystem log.<BR>
    --get=name|pid filename - get a file from sandbox container.<BR>
    --help, -? - this help screen.<BR>
    --hostname=name - set sandbox hostname.<BR>
    --hosts-file=file - use file as /etc/hosts.<BR>
    --ignore=command - ignore command in profile files.<BR>
    --interface=name - move interface in sandbox.<BR>
    <img src="images/haekchen.png" ALT="OK" align="left">--ip=address - set interface IP address.<BR>
    --ip=none - no IP address and no default gateway are configured.<BR>
    --ip6=address - set interface IPv6 address.<BR>
    --iprange=address,address - configure an IP address in this range.<BR>
    <img src="images/haekchen.png" ALT="OK" align="left">--ipc-namespace - enable a new IPC namespace.<BR>
    --join=name|pid - join the sandbox.<BR>
    --join-filesystem=name|pid - join the mount namespace.<BR>
    --join-network=name|pid - join the network namespace.<BR>
    --join-or-start=name|pid - join the sandbox or start a new one.<BR>
    --list - list all sandboxes.<BR>
    --ls=name|pid dir_or_filename - list files in sandbox container.<BR>
    --mac=xx:xx:xx:xx:xx:xx - set interface MAC address.<BR>
    --machine-id - preserve /etc/machine-id<BR>
    --mtu=number - set interface MTU.<BR>
    --name=name - set sandbox name.<BR>
    --net=bridgename - enable network namespaces and connect to this bridge.<BR>
    <img src="images/haekchen.png" ALT="OK" align="left">--net=ethernet_interface - enable network namespaces and connect to this Ethernet interface.<BR>
    --net=none - enable a new, unconnected network namespace.<BR>
    <img src="images/haekchen.png" ALT="OK" align="left">--netfilter[=filename] - enable the default client network filter.<BR>
    --netfilter6=filename - enable the IPv6 network filter.<BR>
    <img src="images/haekchen.png" ALT="OK" align="left">--netns=name - Run the program in a named, persistent network namespace.<BR>
    --netstats - monitor network statistics.<BR>
    <img src="images/haekchen.png" ALT="OK" align="left">--nice=value - set nice value.<BR>
    <img src="images/haekchen.png" ALT="OK" align="left">--no3d - disable 3D hardware acceleration.<BR>
    <img src="images/haekchen.png" ALT="OK" align="left">--noblacklist=filename - disable blacklist for file or directory .<BR>
    <img src="images/haekchen.png" ALT="OK" align="left">--noexec=filename - remount the file or directory noexec nosuid and nodev.<BR>
    <img src="images/haekchen.png" ALT="OK" align="left">--nogroups - disable supplementary groups.<BR>
    <img src="images/haekchen.png" ALT="OK" align="left">--nonewprivs - sets the NO_NEW_PRIVS prctl.<BR>
--noprofile - do not use a security profile.<BR>
    <img src="images/haekchen.png" ALT="OK" align="left">--nosound - disable sound system.<BR>
   <img src="images/haekchen.png" ALT="OK" align="left"> --novideo - disable video devices.<BR>
    <img src="images/haekchen.png" ALT="OK" align="left">--nowhitelist=filename - disable whitelist for file or directory .<BR>
    --output=logfile - stdout logging and log rotation.<BR>
    --overlay - mount a filesystem overlay on top of the current filesystem.<BR>
    --overlay-named=name - mount a filesystem overlay on top of the current  filesystem, and store it in name directory.<BR>
    --overlay-tmpfs - mount a temporary filesystem overlay on top of the current filesystem.<BR>
    --overlay-clean - clean all overlays stored in &#36;HOME/.firejail directory.<BR>
    <img src="images/haekchen.png" ALT="OK" align="left">--private - temporary home directory.<BR>
    <img src="images/haekchen.png" ALT="OK" align="left">--private=directory - use directory as user home.<BR>
   <img src="images/haekchen.png" ALT="OK" align="left"> --private-home=file,directory - build a new user home in a temporary<BR>
        filesystem, and copy the files and directories in the list in the new home.<BR>
    <img src="images/haekchen.png" ALT="OK" align="left">--private-bin=file,file - build a new /bin in a temporary filesystem and copy the programs in the list.<BR>
    <img src="images/haekchen.png" ALT="OK" align="left">--private-dev - create a new /dev directory. Only dri, null, full, zero,tty, pst, ptms, random, snd, urandom, log and shm devices are available.<BR>
    <img src="images/haekchen.png" ALT="OK" align="left">--private-etc=file,directory - build a new /etc in a temporary filesystem, and copy the files and directories in the list.<BR>
    <img src="images/haekchen.png" ALT="OK" align="left">--private-tmp - mount a tmpfs on top of /tmp directory.<BR>
    <img src="images/haekchen.png" ALT="OK" align="left">--private-opt=file,directory - build a new /opt in a temporary filesystem.<BR>
    --profile=filename - use a custom profile.<BR>
    --profile-path=directory - use this directory to look for profile files.<BR>
    --protocol=protocol,protocol,protocol - enable protocol filter.<BR>
    --protocol.print=name|pid - print the protocol filter.<BR>
    --put=name|pid src-filename dest-filename - put a file in sandbox container.<BR>
    --quiet - turn off Firejail&#180;s output.<BR>
    <img src="images/haekchen.png" ALT="OK" align="left">--read-only=filename - set directory or file read-only..<BR>
    --read-write=filename - set directory or file read-write..<BR>
    --rlimit-fsize=number - set the maximum file size that can be created by a process.<BR>
   <img src="images/haekchen.png" ALT="OK" align="left"> --rlimit-nofile=number - set the maximum number of files that can be opened by a process.<BR>
   <img src="images/haekchen.png" ALT="OK" align="left"> --rlimit-nproc=number - set the maximum number of processes that can be created for the real user ID of the calling process.<BR>
    --rlimit-sigpending=number - set the maximum number of pending signals for a process.<BR>
    <img src="images/haekchen.png" ALT="OK" align="left">--rmenv=name - remove environment variable in the new sandbox.<BR>
    --scan - ARP-scan all the networks from inside a network namespace.<BR>
   <img src="images/haekchen.png" ALT="OK" align="left"> --seccomp - enable seccomp filter and apply the default blacklist.<BR>
Enable  seccomp  filter and blacklist the syscalls in the default list. The default               list  is  as  follows:  mount,  umount2,   ptrace,   kexec_load,   kexec_file_load,               open_by_handle_at,  init_module, finit_module, delete_module, iopl, ioperm, swapon,               swapoff,  syslog,  process_vm_readv,  process_vm_writev,  sysfs,_sysctl,  adjtimex,               clock_adjtime,   lookup_dcookie,  perf_event_open,  fanotify_init,  kcmp,  add_key,               request_key, keyctl, uselib, acct, modify_ldt,  pivot_root,  io_setup,  io_destroy,               io_getevents,   io_submit,   io_cancel,   remap_file_pages,  mbind,  get_mempolicy,               set_mempolicy, migrate_pages, move_pages, vmsplice, perf_event_open and chroot.<BR> 
<img src="images/haekchen.png" ALT="OK" align="left">--seccomp=syscall,syscall,syscall<BR>
              Enable seccomp filter, blacklist the default list and the syscalls specified by the command.<BR>
             Example: firejail --seccomp=utime,utimensat,utimes firefox<BR>
       --seccomp.drop=syscall,syscall,syscall<BR>
              Enable seccomp filter, and blacklist the syscalls specified by the command.<BR>
              Example: firejail --seccomp.drop=utime,utimensat,utimes<BR>
    --seccomp.keep=syscall,syscall,syscall - enable seccomp filter, and whitelist the syscalls specified by the command.<BR>
    --seccomp.&lt;errno&gt;=syscall,syscall,syscall - enable seccomp filter, and return errno for the syscalls specified by the command.<BR>
    --seccomp.print=name|pid - print the seccomp filter for the sandbox identified by name or PID.<BR>
  <img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>--shell=none</B>- run the program directly without a user shell.<BR>
    --shell=program - set default user shell.<BR>
    --shutdown=name|pid - shutdown the sandbox identified by name or PID.<BR>
    --tmpfs=dirname - mount a tmpfs filesystem on directory dirname.<BR>
    --top - monitor the most CPU-intensive sandboxes.<BR>
    --trace - trace open, access and connect system calls.<BR>
    --tracelog - add a syslog message for every access to files or directories blacklisted by the security profile.<BR>
    --tree - print a tree of all sandboxed processes.<BR>
    --version - print program version and exit.<BR>
    --veth-name=name - use this name for the interface connected to the bridge.<BR>
    --whitelist=filename - whitelist directory or file.<BR>
    --writable-etc - /etc directory is mounted read-write.<BR>
    --writable-var - /var directory is mounted read-write.<BR>
    --writable-var-log - use the real /var/log directory, not a clone.<BR>
   <img src="images/haekchen.png" ALT="OK" align="left"> --x11 - enable X11 sandboxing. The software checks first if Xpra is installed, then it checks if Xephyr is installed. If all fails, it will attempt to use X11 security extension.<BR>
    --x11=none - disable access to X11 sockets.<BR>
    --x11=xephyr - enable Xephyr X11 server. The window size is 800x600.<BR>
    <img src="images/haekchen.png" ALT="OK" align="left">--x11=xorg - enable X11 security extension.<BR>
    --x11=xpra - enable Xpra X11 server.<BR>
    --x11=xvfb - enable Xvfb X11 server.<BR>
    --zsh - use /usr/bin/zsh as default shell.
<BR><BR>
Examples:<BR>
    &#36; firejail firefox<BR>
        start Mozilla Firefox<BR>
    &#36; firejail --debug firefox<BR>
        debug Firefox sandbox<BR>
    &#36; firejail --private --sna=8.8.8.8 firefox<BR>
        start Firefox with a new, empty home directory, and a well-known DNS-server setting.<BR>
    &#36; firejail --net=eth0 firefox<BR>
        start Firefox in a new network namespace<BR>
    &#36; firejail --x11=xorg firefox<BR>
        start Firefox and sandbox X11<BR>
    &#36; firejail --list<BR>
        list all running sandboxes
</font>
<BR><BR>
License GPL version 2 or later<BR>
Homepage: http://firejail.wordpress.com
<BR><BR>
<cite>&quot;Mit Firejail l&auml;sst sich das Risiko erheblich reduzieren, das von bis dato ungepatchten Sicherheitsl&uuml;cken in Programmen ausgeht.&quot;</cite>, www.kuketz-blog.de/firejail-linux-haerten-teil4   
<BR><BR>
Firejail has got two very interesting options: --profile, what is done with default.profile by default as much as one profile for each program resp. process out of a hugh amount from /etc/firejail and --private. Last one completes  the sandbox in a whole. Refering to linfw3, for still blocking all trojans resp. backdoors, use the already listed firejail-option --profile=/home/surfuser, especially the pregiven (and already listed) profiles. 
<BR><BR>
<B>Resign from firejail, if firefox does not work correctly, until firejail gets reconfigured well enough !</B>
<BR><BR>
&quot;SECure COMPuting with filters (like seccomp within firejail)<BR>
===========================================<BR>
Introduction<BR>
------------<BR>
A large number of system calls are exposed to every userland process with many of them going unused for the entire lifetime of the process. As system calls change and mature, bugs are found and eradicated.  A certain subset of userland applications benefit by having a reduced set of available system calls.  The resulting set reduces the total kernel surface exposed to the application.  System call filtering is meant for use with those applications.<BR> 
Seccomp filtering provides a means for a process to specify a filter for incoming system calls.  The filter is expressed as a Berkeley Packet Filter (BPF) program, as with socket filters, except that the data operated on is related to the system call being made: system call number and the system call arguments.  This allows for expressive filtering of system calls using a filter program language with a long history of being exposed to userland and a straightforward data set.<BR> 
Additionally, BPF makes it impossible for users of seccomp to fall prey to time-of-check-time-of-use (TOCTOU) attacks that are common in system call interposition frameworks.  BPF programs may not dereference pointers which constrains all filters to solely evaluating the system call arguments directly. <BR>
What it isn&#180;t<BR>
-------------<BR>
System call filtering isn&#180;t a sandbox.It provides a clearly defined mechanism for minimizing the exposed kernel surface.  It is meant to be a tool for sandbox developers to use.  Beyond that, policy for logical behavior and information flow should be managed with a combination of other system hardening techniques and, potentially, an LSM of your choosing.  Expressive, dynamic filters provide further options down this path (avoiding pathological sizes or selecting which of the multiplexed system calls in socketcall() is allowed, for instance) which could be construed, incorrectly, as a more complete sandboxing solution.<BR>
Usage<BR>
-----<BR>
An additional seccomp mode is added and is enabled using the same prctl(2) call as the strict seccomp.  If the architecture has CONFIG_HAVE_ARCH_SECCOMP_FILTER, then filters may be added as below:<BR> 
...&quot;, https://www.pro-linux.de/news/1/25207/sicherheits-audit-von-dnsmasq.html, https://www.kernel.org/doc/Documentation/prctl/seccomp_filter.txt
<BR><BR>
Firefox mit Tor:
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><CENTER><TABLE BORDER="1" bgcolor="#15fb9b"><TR><TD><font color="black">sg surfgroup &quot;unshare firejail --nice=19 --profile=/etc/firejail/firefox.profile /usr/lib64/firefox/firefox --no-remote &amp&quot; &amp;&amp; sg surfgroup &quot;unshare firejail --nice=19 --profile=/etc/firejail/tor.profile tor -f /home/surfuser/torrc&quot; &amp;&amp; export RESOLV_HOST_CONF=&quot;/etc/hosts&quot;</font></TD></TR></TABLE></CENTER>
<BR><BR>
with default-firefox.profile like default.profile, but without blacklist /home/surfuser/.mozilla and /home/surfuser/.cache (commented in with &quot;#&quot;).
<BR><BR>
Option tor: is used for the anonymizing TorDNS as the remote-DNS-server, what is introduced with Tor at the end of this excurs. 
<BR><BR>
Following the many profile-files in /etc/firejail, the in comparison to sandbox docker-io easy-to-handle Firejail is recommended for all programs resp. processes online and you might not trust like webserver, server, dolphin (what causes a intern restricted bash, so that you should resign from it as much as for quit all processes online. Have a brief look into the configuration file of firejail in /etc/firejail too: many of them refer to single processes resp. programs, some like files named disable*.inc refer to more than it. There, encrypted partitions and directories including sub-directories  (blacklist /mnt/) and USB-sticks (blacklist /media/ resp. blacklist /media/directory_for_the_usb-stick) can be secured once more too as much as the block of the intern start of bash-commands refering to outside of private and so on. <B>Now everything online runs not only &quot;two and three times more secure&quot; but even much faster than already fast !</B>
<BR><BR>
Firejail-options for *.inc-files within /etc/firejail/ :<BR>
<font style="font-size: 9pt" color="green">caps.drop all<BR>
ipc-namespace<BR>
netfilter<BR>
no3d<BR>
nogroups<BR>
nonewprivs<BR>
noroot<BR>
nosound<BR>
noautopulse<BR>
notv<BR>
protocol unix,inet,inet6<BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>seccomp</B><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>shell none</B><BR>
tracelog<BR>
quiet<BR>
private-dev<BR>
private-bin<BR>
private-etc passwd,group,hostname,hosts,resolv.conf,nsswitch.conf,fonts,mailcap,pulse<BR>
private-tmp<BR>
# ... not all firejail-options should be activated, in order to avoid capacity- and serious hard system-errors!</font>
<BR><BR>
To the profiles of actual firejail 0.9.48-1.pcclos2017 in /etc/firejail, that is provided <B>preconfigured</B> by us (Gooken) to get downloaded from our section for updates, belong (description see &quot;man firejail&quot;)<BR>
<BR><BR>
 <font style="font-size: 9pt" color="green">0ad.profile<BR>
2048-qt.profile<BR>
  140 25. Jun 14:30 7z.profile<BR>
 1225 25. Jun 14:30 abrowser.profile<BR>
  704 20. Mai 23:55 akregator.profile<BR>
  489 25. Jun 14:30 amarok.profile<BR>
  568 20. Mai 23:55 arduino.profile<BR>
  499 25. Jun 14:30 ark.profile<BR>
  347 25. Jun 14:30 atom-beta.profile<BR>
  342 25. Jun 14:30 atom.profile<BR><BR>
  535 25. Jun 14:30 atool.profile<BR><BR>
  410 25. Jun 14:30 atril.profile<BR><BR>
  267 25. Jun 14:30 audacious.profile<BR>
  357 25. Jun 14:30 audacity.profile<BR>
  458 25. Jun 14:30 aweather.profile<BR>
 1742 20. Mai 23:55 baloo_file.profile<BR>
  785 20. Mai 23:55 bibletime.profile<BR>
  271 25. Jun 14:30 bitlbee.profile<BR>
  488 25. Jun 14:30 bleachbit.profile<BR>
  488  8. Mai 23:07 bleachbit.profile<BR>
  595 20. Mai 23:55 blender.profile<BR>
  492 25. Jun 14:30 bless.profile<BR>
  492  8. Mai 23:07 bless.profile<BR>
  535 25. Jun 14:30 brasero.profile<BR>
  535  8. Mai 23:07 brasero.profile<BR>
  338 25. Jun 14:30 brave.profile<BR>
  878 20. Mai 23:55 caja.profile<BR>
  407 25. Jun 14:30 cherrytree.profile<BR>
   66 25. Jun 14:30 chromium-browser.profile<BR>
  695 25. Jun 14:30 chromium.profile<BR>
  393 25. Jun 14:30 claws-mail.profile<BR>
  268 25. Jun 14:30 clementine.profile<BR>
  598 20. Mai 23:55 clipit.profile<BR>
  340 25. Jun 14:30 cmus.profile<BR>
  564 25. Jun 14:30 conkeror.profile<BR>
  262 25. Jun 14:30 corebird.profile<BR>
  379 25. Jun 14:30 cpio.profile<BR>
  178 25. Jun 14:30 cryptocat.profile<BR>
  524 20. Mai 23:55 Cryptocat.profile<BR>
  582 25. Jun 14:30 cvlc.profile<BR>
   99 25. Jun 14:30 cyberfox.profile<BR>
  245 20. Mai 23:55 Cyberfox.profile<BR>
  304 25. Jun 14:30 deadbeef.profile<BR>
  366 25. Jun 14:30 default0.profile<BR>
  366 25. Jun 14:30 default2.profile<BR>
  607 25. Jun 14:30 default-firefox.profile<BR>
  371 25. Jun 14:30 default-gftp.profile<BR>
  367 25. Jun 14:30 default.profile<BR>
  397 25. Jun 14:30 deluge.profile<BR>
  526 20. Mai 23:55 dia.profile<BR>
  450 25. Jun 14:30 dillo.profile<BR>
  755 20. Mai 23:55 dino.profile<BR>
 4812 25. Jun 14:30 disable-common0.inc<BR>
 7239 25. Jun 14:30 disable-common-gftp.inc<BR>
 3788 25. Jun 14:30 disable-common.inc<BR>
 3788 11. Mai 15:08 disable-common.inc.rpmsave<BR>
 7239 25. Jun 14:30 disable-common-kmail.inc<BR>
   91 25. Jun 14:30 disable-devel-firefox.inc<BR>
 1470 25. Jun 14:30 disable-devel.inc<BR>
  725 25. Jun 14:30 disable-firefox.inc<BR>
  187 25. Jun 14:30 disable-passwdmgr.inc<BR>
  567 25. Jun 14:30 disable-programs-firefox.inc<BR>
 4949 25. Jun 14:30 disable-programs.inc<BR>
  538 25. Jun 14:30 display.profile<BR>
  770 25. Jun 14:30 dnscrypt-proxy.profile<BR>
  327 25. Jun 14:30 dnsmasq.profile<BR>
  831 25. Jun 14:30 dolphin.profile<BR>
  831  8. Mai 23:07 dolphin.profile<BR>
  370 25. Jun 14:30 dosbox.profile<BR>
  529 25. Jun 14:30 dragon.profile<BR>
  448 25. Jun 14:30 dropbox.profile<BR>
  562 25. Jun 14:30 elinks.profile<BR>
  276 25. Jun 14:30 emacs.profile<BR>
  229 25. Jun 14:30 empathy.profile<BR>
  535 25. Jun 14:30 enchant.profile<BR>
  505 25. Jun 14:30 engrampa.profile<BR>
  376 25. Jun 14:30 eog.profile<BR>
  374 25. Jun 14:30 eom.profile<BR>
  609 25. Jun 14:30 epiphany.profile<BR>
  356 25. Jun 14:30 evince.profile<BR>
  476 25. Jun 14:30 evolution.profile<BR>
  630 25. Jun 14:30 exiftool.profile<BR>
  402 25. Jun 14:30 fbreader.profile<BR>
  367 25. Jun 14:30 feh.profile<BR>
  223 25. Jun 14:30 file.profile<BR>
  514 25. Jun 14:30 file-roller.profile<BR>
  553 20. Mai 23:55 filezilla.profile<BR>
  230 20. Mai 23:55 firefox-esr.profile<BR>
 1819 20. Mai 23:55 firefox.profile<BR>
 2985 25. Jun 14:30 firejail.config
  898 25. Jun 14:30 flashpeak-slimjet.profile<BR>
  300 25. Jun 14:30 flowblade.profile<BR>
  544 20. Mai 23:55 fontforge.profile<BR>
  429 25. Jun 14:30 fossamail.profile<BR>
  220 20. Mai 23:55 FossaMail.profile<BR>
  481 25. Jun 14:30 franz.profile<BR>
  817 25. Jun 14:30 gajim.profile<BR>
  601 20. Mai 23:55 galculator.profile<BR>
  543 20. Mai 23:55 geany.profile<BR>
  621 25. Jun 14:30 gedit.profile<BR>
  582 25. Jun 14:30 geeqie.profile<BR>
   36 20. Mai 23:55 gimp-2.8.profile<BR>
  295 25. Jun 14:30 gimp.profile<BR>
  418 25. Jun 14:30 git.profile<BR>
  383 25. Jun 14:30 gitter.profile<BR>
  833 25. Jun 14:30 gjs.profile<BR>
  555 20. Mai 23:55 globaltime.profile<BR>
  653 25. Jun 14:30 gnome-2048.profile<BR>
  654 25. Jun 14:30 gnome-books.profile<BR>
  503 25. Jun 14:30 gnome-calculator.profile<BR>
  431 25. Jun 14:30 gnome-chess.profile<BR>
  526 25. Jun 14:30 gnome-clocks.profile<BR>
  499 25. Jun 14:30 gnome-contacts.profile<BR>
  612 25. Jun 14:30 gnome-documents.profile<BR>
  543 20. Mai 23:55 gnome-font-viewer.profile<BR>
  627 25. Jun 14:30 gnome-maps.profile<BR>
  627  8. Mai 23:07 gnome-maps.profile<BR>
  329 25. Jun 14:30 gnome-mplayer.profile<BR>
  552 25. Jun 14:30 gnome-music.profile<BR>
  663 25. Jun 14:30 gnome-photos.profile<BR>
  669 25. Jun 14:30 gnome-weather.profile<BR>
  493 25. Jun 14:30 goobox.profile<BR>
  704 25. Jun 14:30 google-chrome-beta.profile<BR>
  670 25. Jun 14:30 google-chrome.profile<BR>
   76 25. Jun 14:30 google-chrome-stable.profile<BR>
  732 25. Jun 14:30 google-chrome-unstable.profile<BR>
  452 25. Jun 14:30 google-play-music-desktop-player.profile<BR>
  493 25. Jun 14:30 gpa.profile<BR>
  542 25. Jun 14:30 gpg-agent.profile<BR>
  530 25. Jun 14:30 gpg.profile<BR>
  543 25. Jun 14:30 gpicview.profile<BR>
  458 25. Jun 14:30 gpredict.profile<BR>
   55 25. Jun 14:30 gtar.profile<BR>
  370 25. Jun 14:30 gthumb.profile<BR>
  501 25. Jun 14:30 guayadeque.profile<BR>
  535 20. Mai 23:55 gucharmap.profile<BR>
  424 25. Jun 14:30 gwenview.profile<BR>
  153 25. Jun 14:30 gzip.profile<BR>
  425 25. Jun 14:30 hedgewars.profile<BR>
  632 25. Jun 14:30 hexchat.profile<BR>
  546 25. Jun 14:30 highlight.profile<BR>
  544 20. Mai 23:55 hugin.profile<BR>
 1224 25. Jun 14:30 icecat.profile<BR>
  445 25. Jun 14:30 icedove.profile<BR>
   99 25. Jun 14:30 iceweasel.profile<BR>
  508 25. Jun 14:30 img2txt.profile<BR>
  302 25. Jun 14:30 inkscape.profile<BR>
  509 25. Jun 14:30 inox.profile<BR>
  192 25. Jun 14:30 iridium-browser.profile<BR>
  631 25. Jun 14:30 iridium.profile<BR>
  479 25. Jun 14:30 jd-gui.profile<BR>
  479  8. Mai 23:07 jd-gui.profile<BR>
  326 25. Jun 14:30 jitsi.profile<BR>
  475 25. Jun 14:30 k3b.profile<BR>
  475  8. Mai 23:07 k3b.profile<BR>
  700 25. Jun 14:30 kate.profile<BR>
  617 20. Mai 23:55 kcalc.profile<BR>
  219 25. Jun 14:30 keepass2.profile<BR>
  400 25. Jun 14:30 keepass.profile<BR>
  630 25. Jun 14:30 keepassx2.profile<BR>
  630  8. Mai 23:07 keepassx2.profile<BR>
  673 25. Jun 14:30 keepassxc.profile<BR>
  673  8. Mai 23:07 keepassxc.profile<BR>
  427 25. Jun 14:30 keepassx.profile<BR>
  665 25. Jun 14:30 kino.profile<BR>
  665  8. Mai 23:07 kino.profile<BR>
  356 25. Jun 14:30 kmail.profile<BR>
  356 21. Apr 13:50 kmail.profile<BR>
  526 20. Mai 23:55 knotes.profile<BR>
  545 20. Mai 23:55 kodi.profile<BR>
  288 25. Jun 14:30 konversation.profile<BR>
  709 20. Mai 23:55 ktorrent.profile<BR>
  558 20. Mai 23:55 leafpad.profile<BR>
  122 25. Jun 14:30 less.profile<BR>
  400 25. Jun 14:30 libreoffice.profile<BR>
  131 25. Jun 14:30 localc.profile<BR>
  131 25. Jun 14:30 lodraw.profile<BR>
  131 25. Jun 14:30 loffice.profile<BR>
  131 25. Jun 14:30 lofromtemplate.profile<BR>
  345 25. Jun 14:30 login.users
  131 25. Jun 14:30 loimpress.profile<BR>
  506 25. Jun 14:30 lollypop.profile<BR>
  506  8. Mai 23:07 lollypop.profile<BR>
  131 25. Jun 14:30 lomath.profile<BR>
  131 25. Jun 14:30 loweb.profile<BR>
  131 25. Jun 14:30 lowriter.profile<BR>
  349 25. Jun 14:30 luminance-hdr.profile<BR>
  556 20. Mai 23:55 lximage-qt.profile<BR>
  579 20. Mai 23:55 lxmusic.profile<BR>
  263 25. Jun 14:30 lxterminal.profile<BR>
  533 25. Jun 14:30 lynx.profile<BR>
  562 20. Mai 23:55 mate-calc.profile<BR>
   42 20. Mai 23:55 mate-calculator.profile<BR>
  533 20. Mai 23:55 mate-color-select.profile<BR>
  579 20. Mai 23:55 mate-dictionary.profile<BR>
  213 20. Mai 23:55 mathematica.profile<BR>
  491 25. Jun 14:30 Mathematica.profile<BR>
  213  8. Mai 23:07 mathematica.profile<BR>
  387 25. Jun 14:30 mcabber.profile<BR>
  545 25. Jun 14:30 mediainfo.profile<BR>
  533 25. Jun 14:30 mediathekview.profile<BR>
  551 20. Mai 23:55 meld.profile<BR>
  301 25. Jun 14:30 midori.profile<BR>
  526 25. Jun 14:30 mousepad.profile<BR>
  363 25. Jun 14:30 mpv.profile<BR>
  717 25. Jun 14:30 multimc5.profile<BR>
  717  8. Mai 23:07 multimc5.profile<BR>
  734 25. Jun 14:30 mumble.profile<BR>
  734  8. Mai 23:07 mumble.profile<BR>
  890 25. Jun 14:30 mupdf.profile<BR>
  514 25. Jun 14:30 mupen64plus.profile<BR>
  774 25. Jun 14:30 mutt.profile<BR>
  859 25. Jun 14:30 nautilus.profile<BR>
  859  8. Mai 23:07 nautilus.profile<BR>
  674 20. Mai 23:55 nemo.profile<BR>
  658 25. Jun 14:30 netsurf.profile<BR>
  774 25. Jun 14:30 nolocal.net
  652 20. Mai 23:55 nylas.profile<BR>
  554 25. Jun 14:30 odt2txt.profile<BR>
  542 25. Jun 14:30 okular.profile<BR>
  284 25. Jun 14:30 openbox.profile<BR>
  294 25. Jun 14:30 openshot.profile<BR>
  591 25. Jun 14:30 opera-beta.profile<BR>
  611 25. Jun 14:30 opera.profile<BR>
  584 20. Mai 23:55 orage.profile<BR>
 1601 25. Jun 14:30 palemoon.profile<BR>
  371 25. Jun 14:30 parole.profile<BR>
  660 20. Mai 23:55 pcmanfm.profile<BR>
  439 25. Jun 14:30 pdfsam.profile<BR>
  439  8. Mai 23:07 pdfsam.profile<BR>
  541 25. Jun 14:30 pdftotext.profile<BR>
  363 25. Jun 14:30 pidgin.profile<BR>
  483 25. Jun 14:30 pithos.profile<BR>
  483  8. Mai 23:07 pithos.profile<BR>
  412 25. Jun 14:30 pix.profile<BR>
  503 25. Jun 14:30 pluma.profile<BR>
  707 25. Jun 14:30 polari.profile<BR>
  507 25. Jun 14:30 psi-plus.profile<BR>
  439 25. Jun 14:30 qbittorrent.profile<BR>
  452 25. Jun 14:30 qemu-launcher.profile<BR>
  418 25. Jun 14:30 qemu-system-x86_64.profile<BR>
  560 20. Mai 23:55 qlipper.profile<BR>
  405 25. Jun 14:30 qpdfview.profile<BR>
  448 25. Jun 14:30 qtox.profile<BR>
  222 25. Jun 14:30 quassel.profile<BR>
  626 25. Jun 14:30 quiterss.profile<BR>
  813 25. Jun 14:30 qupzilla.profile<BR>
  533 25. Jun 14:30 qutebrowser.profile<BR>
  426 25. Jun 14:30 ranger.profile<BR>
  353 25. Jun 14:30 rhythmbox.profile<BR>
  574 20. Mai 23:55 ristretto.profile<BR>
  360 25. Jun 14:30 rtorrent.profile<BR>
  885 25. Jun 14:30 scribus.profile<BR>
  885  8. Mai 23:07 scribus.profile<BR>
  100 25. Jun 14:30 seamonkey-bin.profile<BR>
 1293 25. Jun 14:30 seamonkey.profile<BR>
  355 25. Jun 14:30 server.profile<BR>
  562 25. Jun 14:30 simple-scan.profile<BR>
  506 25. Jun 14:30 skanlite.profile<BR>
  267 25. Jun 14:30 skypeforlinux.profile<BR>
  243 25. Jun 14:30 skype.profile<BR>
  624 25. Jun 14:30 slack.profile<BR>
  349 25. Jun 14:30 snap.profile<BR>
  131 25. Jun 14:30 soffice.profile<BR>
  844 25. Jun 14:30 spotify.profile<BR>
  464 25. Jun 14:30 ssh-agent.profile<BR>
  287 25. Jun 14:30 ssh.profile<BR>
  603 25. Jun 14:30 start-tor-browser.profile<BR>
  386 25. Jun 14:30 steam.profile<BR>
  546 25. Jun 14:30 stellarium.profile<BR>
  126 25. Jun 14:30 strings.profile<BR>
  322 25. Jun 14:30 synfigstudio.profile<BR>
  301 25. Jun 14:30 tar.profile<BR>
   62 25. Jun 14:30 telegram.profile<BR>
  208 20. Mai 23:55 Telegram.profile<BR>
   62 12. Apr 20:18 telegram.profile<BR>
  208  8. Mai 23:07 Telegram.profile<BR>
   37 25. Jun 14:30 thunar.profile<BR>
  725 20. Mai 23:55 Thunar.profile<BR>
  540  8. Mai 23:07 Thunar.profile<BR>
  446 25. Jun 14:30 thunderbird.profile<BR>
  335 25. Jun 14:30 totem.profile<BR>
  628 25. Jun 14:30 tracker.profile<BR>
  618 25. Jun 14:30 transmission-cli.profile<BR>
  460 25. Jun 14:30 transmission-gtk.profile<BR>
  457 25. Jun 14:30 transmission-qt.profile<BR>
  591 25. Jun 14:30 transmission-show.profile<BR>
  441 25. Jun 14:30 uget-gtk.profile<BR>
  780 25. Jun 14:30 unbound.profile<BR>
  235 25. Jun 14:30 unrar.profile<BR>
  223 25. Jun 14:30 unzip.profile<BR>
  223 25. Jun 14:30 uudeview.profile<BR>
  702 25. Jun 14:30 uzbl-browser.profile<BR>
  609 20. Mai 23:55 viewnior.profile<BR>
  581 20. Mai 23:55 viking.profile<BR>
  292 25. Jun 14:30 vim.profile<BR>
  273 25. Jun 14:30 virtualbox.profile<BR>
  189 20. Mai 23:55 VirtualBox.profile<BR>
   69 25. Jun 14:30 vivaldi-beta.profile<BR>
  540 25. Jun 14:30 vivaldi.profile<BR>
  534 25. Jun 14:30 vivaldi-stable.profile<BR>
  398 25. Jun 14:30 vlc.profile<BR>
  547 25. Jun 14:30 w3m.profile<BR>
  521 25. Jun 14:30 warzone2100.profile<BR>
  992 25. Jun 14:30 webserver.net
   69 25. Jun 14:30 weechat-curses.profile<BR>
  408 25. Jun 14:30 weechat.profile<BR>
  689 25. Jun 14:30 wesnoth.profile<BR>
  497 25. Jun 14:30 wget.profile<BR>
  497  8. Mai 23:07 wget.profile<BR>
  746 25. Jun 14:30 whitelist-common.inc<BR>
  284 25. Jun 14:30 wine.profile<BR>
  676 20. Mai 23:55 wire.profile<BR>
  203 25. Jun 14:30 Wire.profile<BR>
  609 25. Jun 14:30 wireshark.profile<BR>
  609  8. Mai 23:07 wireshark.profile<BR>
  288 25. Jun 14:30 xchat.profile<BR>
  497 25. Jun 14:30 xed.profile<BR>
  922 20. Mai 23:55 Xephyr.profile<BR>
  531 25. Jun 14:30 xfburn.profile<BR>
  555 20. Mai 23:55 xfce4-dict.profile<BR>
  657 20. Mai 23:55 xfce4-notes.profile<BR>
  676 25. Jun 14:30 xiphos.profile<BR>
  487 25. Jun 14:30 xmms.profile<BR>
  225 25. Jun 14:30 xonotic-glx.profile<BR>
  602 25. Jun 14:30 xonotic.profile<BR>
  602  8. Mai 23:07 xonotic.profile<BR>
  225 25. Jun 14:30 xonotic-sdl.profile<BR>
  352 25. Jun 14:30 xpdf.profile<BR>
  450 25. Jun 14:30 xplayer.profile<BR>
  512 25. Jun 14:30 xpra.profile<BR>
  512  8. Mai 23:07 xpra.profile<BR>
  450 25. Jun 14:30 xreader.profile<BR>
 1128 20. Mai 23:55 Xvfb.profile<BR>
  336 25. Jun 14:30 xviewer.profile<BR>
  154 25. Jun 14:30 xzdec.profile<BR>
   54 25. Jun 14:30 xz.profile<BR>
  530 20. Mai 23:55 youtube-dl.profile<BR>
  393 25. Jun 14:30 zathura.profile<BR>
  470 25. Jun 14:30 zoom.profile</font>
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>/etc/firejail/palemoon.profile</B>:<BR>
...<BR>
<font style="font-size: 9pt">
# For Pale Moon and Tor<BR>
################################<BR>
# Generic GUI application profile<BR>
################################<BR>
include /etc/firejail/disable-common.inc<BR>
include /etc/firejail/disable-programs.inc<BR>
include /etc/firejail/disable-passwdmgr.inc<BR>
noblacklist /usr/bin/palemoon<BR>
noblacklist /usr/bin/tor<BR>
noblacklist &#36;{HOME}/.moon*<BR>
noblacklist &#36;{HOME}/keys<BR>
noblacklist &#36;{HOME}/lock<BR>
noblacklist &#36;{HOME}/state<BR>
noblacklist &#36;{HOME}/cached*<BR>
noblacklist &#36;{HOME}/ca-bundle.crt<BR>
noblacklist &#36;{HOME}/.thumbnails<BR>
noblacklist &#36;{HOME}/cache<BR>
noblacklist &#36;{HOME}/control_auth_cookie<BR>
read-only &#36;{HOME}/geoip<BR>
read-only &#36;{HOME}/geoip6<BR>
read-only &#36;{HOME}/torrc<BR>
read-only &#36;{HOME}/.pale*/moon*/profile.yourprofile/user.js<BR>
noblacklist &#36;{HOME}/tmp<BR>
blacklist &#36;{HOME}/.local<BR>
blacklist &#36;{HOME}/.pulse<BR>
blacklist &#36;{HOME}/.kde<BR>
blacklist &#36;{HOME}/.kde4<BR>
blacklist &#36;{HOME}/.gftp<BR>
blacklist &#36;{HOME}/.config<BR>
blacklist &#36;{HOME}/.pki<BR>
blacklist &#36;{HOME}/.mcop<BR>
blacklist &#36;{HOME}/.fontconfig<BR>
blacklist &#36;{HOME}/.dbus<BR>
blacklist &#36;{HOME}/.bash*<BR>
blacklist &#36;{HOME}/.abrt<BR>
blacklist &#36;{HOME}/.gconf*<BR>
blacklist &#36;{HOME}/.xsession-errors<BR>
blacklist &#36;{HOME}/.profile<BR>
blacklist &#36;{HOME}/Desktop<BR>
blacklist &#36;{HOME}/.mozilla<BR>
blacklist &#36;{HOME}/.wine<BR>
blacklist &#36;{HOME}/.gnupg        <BR>
blacklist &#36;{HOME}/.mozilla<BR>
blacklist /usr/lib/perl*<BR>
blacklist /usr/lib64/perl*<BR>
blacklist /etc/shadow<BR>
blacklist /etc/shadow-<BR>
blacklist /usr/src<BR>
blacklist /usr/games<BR>
blacklist /etc/init.d<BR>
blacklist /etc/rc0.d<BR>
blacklist /etc/rc1.d<BR>
blacklist /etc/rc2.d<BR>
blacklist /etc/rc3.d<BR>
blacklist /etc/rc4.d<BR>
blacklist /etc/rc5.d<BR>
blacklist /etc/rc6.d<BR>
blacklist /usr/local<BR>
blacklist /etc/rc.d<BR>
blacklist /etc/fstab<BR>
blacklist /etc/mtab<BR>
blacklist /etc/crypttab<BR>
blacklist /etc/shadow<BR>
blacklist /etc/shadow-<BR>
blacklist /etc/passwd<BR>
blacklist /boot<BR>
blacklist /usr/bin/*<BR>
blacklist /bin/*<BR>
ipc-namespace<BR>
caps.drop all<BR>
nodbus<BR>
nodvd<BR>
nogroups<BR>
netfilter<BR>
nonewprivs<BR>
noroot<BR>
protocol unix,inet,netlink<BR>
seccomp<BR>
shell none<BR>
no3d<BR>
nosound<BR>
nou2f<BR>
#private-bin which,firefox<BR>
private-dev<BR>
private-tmp<BR>
private-etc passwd,group,hostname,hosts,fonts,nsswitch.conf,xdg,resolv.conf,pango<BR>
#private-etc</font>
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>/etc/firejail/firefox.profile (extraction)</B>:<BR>
...<BR>
<font style="font-size: 9pt"># This file is overwritten during software install.<BR>
# Persistent customizations should go in a .local file.<BR>
include /etc/firejail/firefox.local<BR>
# Firejail profile for Mozilla Firefox (Iceweasel in Debian)<BR>
noblacklist ~/.mozilla<BR>
noblacklist ~/.cache/mozilla<BR>
blacklist ~/.config/qpdfview<BR>
blacklist ~/.local/share/qpdfview<BR>
blacklist ~/.pki<BR>
blacklist /usr/bin<BR>
blacklist /usr/sbin<BR>
blacklist /usr/src<BR>
blacklist /opt<BR>
blacklist /sbin<BR>
blacklist /usr/libexec<BR>
blacklist /bin<BR>
blacklist /usr/games<BR>
blacklist /etc/init.d<BR>
blacklist /etc/rc0.d<BR>
blacklist /etc/rc1.d<BR>
blacklist /etc/rc2.d<BR>
blacklist /etc/rc3.d<BR>
blacklist /etc/rc4.d<BR>
blacklist /etc/rc5.d<BR>
blacklist /etc/rc6.d<BR>
blacklist /etc/rc.d<BR>
blacklist /etc/fstab<BR>
blacklist /etc/mtab<BR>
blacklist /etc/crypttab<BR>
blacklist /etc/shadow<BR>
blacklist /etc/shadow-<BR>
blacklist /etc/passwd<BR>
blacklist /boot<BR>
blacklist /usr/local<BR>
blacklist ~./kde4<BR>
blacklist ~./config<BR>
blacklist ~./gconf<BR>
blacklist ~./gconfd<BR>
blacklist ~./local<BR>
blacklist ~./mcop<BR>
blacklist ~./pulse-cookie<BR>
blacklist ~./thumbnails<BR>
blacklist ~./Desktop<BR>
blacklist /home/secret<BR>
blacklist /home/toranonym<BR>
blacklist /media<BR>
blacklist /mnt<BR>
noblacklist /usr/bin/xargs<BR>
noblacklist /usr/bin/xauth<BR>
noblacklist /usr/bin/export<BR>
noblacklist /usr/bin/firefox<BR>
noblacklist /usr/bin/sg<BR>
noblacklist /usr/bin/gftp<BR>
noblacklist /usr/bin/gftp-gtk<BR>
noblacklist /usr/bin/gftp-text<BR>
noblacklist /usr/bin/tor<BR>
noblacklist /bin/certtool<BR>
noblacklist /bin/certutil<BR>
noblacklist /bin/basename<BR>
noblacklist /bin/bash.old<BR>
noblacklist /bin/p11tool<BR>
noblacklist /bin/pk12util<BR>
noblacklist /bin/smime<BR>
noblacklist /bin/shlibsign<BR>
noblacklist /bin/signtool<BR>
noblacklist /bin/signver<BR>
noblacklist /bin/ssltap<BR>
read-only /home/surfuser/.mozilla/firefox/default.profile/user.js
read-only /home/surfuser/torrc
read-only /home/surfuser/.mozilla/firefox/prefs.js
#blacklist ~/."moonchild productions"
include /etc/firejail/disable-common0.inc
include /etc/firejail/disable-programs.inc
include /etc/firejail/disable-devel.inc
<img src="images/haekchen.png" ALT="OK" align="left" border="0">caps.drop all<BR>
# caps.drop=CAP_AUDIT_CONTROL,CAP_AUDIT_WRITE,CAP_AUDIT_READ<BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">ipc-namespace<BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">netfilter<BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">nogroups<BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">nonewprivs<BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">noroot<BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">protocol unix,inet,netlink<BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">seccomp<BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">shell none<BR>
nosound<BR>
noautopulse<BR>
notv<BR>
# tracelog<BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">no3d<BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">nodbus<BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">nodvd<BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">nosound<BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">nou2f<BR>
# ... see firejail --help,  BEACHTE: Nicht alle Firejail-Optionen funktionieren f&uuml;r Firefox!
mkdir ~/.mozilla<BR>
whitelist ~/.mozilla<BR>
mkdir ~/.cache/mozilla/firefox<BR>
whitelist ~/.cache/mozilla/firefox<BR>
whitelist ~/dwhelper<BR>
mkdir ~/.pki<BR>
whitelist ~/.pki<BR>
disable-mnt # or use blacklist /mnt and blacklist /media <BR><BR>
private-dev # This might not always work with firefox<BR>
# experimental features<BR>
# private-bin sh,which,env,dbus-send,dbus-launch<BR>
# private-etc passwd,group,hostname,hosts,localtime,nsswitch.conf,resolv.conf,xdg,pango,fonts,firefox,mime.types,mailcap,asound.conf,pulse<BR>
private-etc passwd,group,hostname,hosts,resolv.conf,nsswitch.conf,fonts,mailcap,pulse<BR>
# private-dev # - prevents video calls going out<BR>
private-tmp<BR>
noexec &#36;{HOME}<BR>
noexec /tmp<BR>
noexec /tmp2</font>
<BR><BR>
... or, in order to start konqueror with priority 18 always by mouseclick out of the K-menu, type &quot;sg surfgroup konqueror &amp;&amp; renice -n 18 &#180;pidof konqueror&#180; &&amp;kded4&quot; resp. with firejail-options into the command-line, after editing the K-menu with kmenuedit. Konqueror loads websites even with process-priority 18 <B>fabolous</B> fast (its like beaming to visit anything anywhere at once with a Spaceship like Enterprise thanks Spock, as if Google has not been there for a long time...). We also started services like the cookie-management for surfuser named kded4. On our linksites we describe by reports and links more enfastening methods for the browser Firefox. 
<BR><BR>
Notice, that there is a <B>patch for firejail (pclos2017)</B> from year 2017/12 firejail-0.9.52-1.x86_64 making the private-option in all cases really effective. This means for our two examples for firejail for konqueror and firefox better to resign from this option for the first time, until firejail might gets reconfgured. To make firejail already work well without this option, we suggest the following configuration. Also notice, that it won&#180;t fit for all programs (although quit all). In this case, single entries might have to be removed or added to store into new configuration files:
<BR><BR>
<font color="red"><B>Pale Moon, notice: noscript and RequestBlockPolicyContinned do not block many scripts as they should do!</B></font><BR>
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">/etc/firejail/palemoon.profile<BR>
#### Especially for Pale Moon (browser):<BR>
<BR>
<font style="font-size: 9pt" color="green">blacklist /mnt<BR>
blacklist /media<BR>
blacklist /etc/cups<BR>
blacklist /usr/local<BR>
blacklist /usr/sbin<BR>
blacklist /sbin<BR>
blacklist /usr/libexec<BR>
blacklist /usr/games<BR>
blacklist /lib<BR>
blacklist /home/toruser<BR>
blacklist /home/user<BR>
blacklist /opt<BR>
blacklist /usr/lib<BR>
blacklist /usr/lib/python*<BR>
blacklist /usr/lib64/python*<BR>
blacklist /usr/lib/perl*<BR>
blacklist /usr/lib64/perl*<BR>
blacklist /etc/shadow<BR>
blacklist /etc/shadow-<BR>
blacklist &#36;{HOME}/.wine<BR>
blacklist &#36;{HOME}/.gnupg        <BR>
ipc-namespace<BR>
caps.drop all<BR>
netfilter<BR>
nonewprivs<BR>
noroot<BR>
protocol unix,inet,inet6<BR>
seccomp<BR>
#nogroup<BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">shell none<BR>
#private-bin which,firefox<BR>
private-dev<BR>
private-tmp<BR>
private-etc passwd,group,hostname,hosts,fonts,nsswitch.conf,xdg,resolv.conf,pango
#<BR>
#### end Pale Moon (/etc/firejail/palemoon.profile)</font><BR>
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">/etc/firejail/<B>default.profile (<B>preconfigured</B> firejail (fc27, pclos2017, rosa2016.1) from August 2017 can be downloaded  from our update section)</B>:
<BR><BR>
<font color="green" style="font-size: 9pt">################################<BR>
# Generic GUI application profile<BR>
################################<BR>
include /etc/firejail/disable-common.inc<BR>
include /etc/firejail/disable-programs.inc<BR>
include /etc/firejail/disable-passwdmgr.inc<BR>
#<BR>
blacklist DOLLAR{HOME}/.wine <BR>
blacklist DOLLAR{HOME}/.gnupg<BR>
caps.drop all<BR>
# netfilter<BR>
nonewprivs<BR>
noroot<BR>
protocol unix,inet,inet6<BR>
# seccomp</font> <BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>shell none</B> # this is very important and suitable for many profiles, even konqueror, kmail and thunderbird, but not all profiles: also notice our comments about /etc/passwd<BR>
<BR><BR>
/etc/firejail/<B>disable-common.inc</B> of firejail (rosa2014.1), alternatively set ACL-rules (setfacl):
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>noexec /usr/bin/bash</B> # for some profiles like for Konqueror<BR>
<font style="font-size: 9pt" color="green">noexec /bin/bash<BR>
# History files in HOME<BR>
blacklist-nolog DOLLAR{HOME}/.history<BR>
blacklist-nolog {HOME}/.*_history<BR>
blacklist {HOME}/.local/share/systemd<BR>
blacklist-nolog {HOME}/.adobe<BR>
blacklist-nolog {HOME}/.macromedia<BR>
read-only {HOME}/.local/share/applications
<BR><BR>
# X11 session autostart and more<BR>
blacklist DOLLAR{HOME}/Desktop<BR>
blacklist {HOME}/*.jar<BR>
blacklist {HOME}/logs<BR>
blacklist {HOME}/tor-browser<BR>
blacklist {HOME}/.xinitrc<BR>
blacklist {HOME}/.xprofile<BR>
blacklist {HOME}/.config/autostart<BR>
blacklist /etc/xdg/autostart<BR>
blacklist {HOME}/.kde4/Autostart<BR>
blacklist {HOME}/.kde4/share/autostart<BR>
blacklist {HOME}/.kde/Autostart<BR>
blacklist {HOME}/.kde/share/autostart<BR>
blacklist {HOME}/.config/plasma-workspace/shutdown<BR>
blacklist {HOME}/.config/plasma-workspace/env<BR>
blacklist {HOME}/.config/lxsession/LXDE/autostart<BR>
blacklist {HOME}/.fluxbox/startup<BR>
blacklist {HOME}/.config/openbox/autostart<BR>
blacklist {HOME}/.config/openbox/environment<BR>
blacklist {HOME}/.gnomerc<BR>
read-only /etc<BR>
read-only /bin<BR>
read-only /usr/bin<BR>
read-only /usr/etc<BR>
read-only /proc<BR>
read-only /sys<BR>
read-only /dev<BR>
blacklist /etc/X11/Xsession.d/<BR>
blacklist /media/ # USB-Sticks / USB-Speicherstifte<BR>
blacklist /media/sicher/<BR>
blacklist /mnt<BR>
blacklist /opt<BR>
blacklist /misc<BR>
blacklist /secoff<BR>
blacklist /sid-root<BR>
blacklist /lost+found<BR>
blacklist /smack<BR>
blacklist /srv<BR>
blacklist /net<BR>
blacklist /initrd<BR>
blacklist /intel-ucode<BR>
blacklist /boot-save<BR>
blacklist /boot<BR>
blacklist /cgroup<BR>
blacklist /root<BR>
read-only /lib<BR>
read-only /lib64<BR>
read-only /usr/lib<BR>
read-only /usr/lib64 # Firefox: &quot;read-only /usr/lib64/lib*&quot; or read-only /usr/lib64/a*, ..., read-only /usr/lib64/z* without the firefox-directory<BR>
read-only /usr/lib64/kde4<BR>
blacklist /usr/local<BR>
blacklist /usr/bin/ssh*<BR>
blacklist /usr/src<BR>
read-only /usr/bin/firejail<BR>
read-only /usr/ssl<BR>
read-only /usr/libexec<BR>
read-only /usr/uclibc<BR>
read-only /usr/X11R6<BR>
read-only /usr/x86_64-linux-uclibc<BR>
read-only /usr/etc<BR>
read-only /usr/com<BR>
read-only /usr/docs<BR>
read-only /usr/enthought<BR>
read-only /usr/GNUstep<BR>
read-only /usr/selenium<BR>
read-only /usr/man<BR>
read-only /usr/mipsel-linux<BR>
read-only /usr/i686-w64-mingw32<BR>
read-only /usr/i486-linux-libc5<BR>
blacklist /bin/kill<BR>
blacklist /bin/rm<BR>
blacklist /bin/ping<BR>
blacklist /bin/mount*<BR>
blacklist /bin/umount*<BR>
blacklist /bin/ls*<BR>
blacklist /bin/sed*<BR>
blacklist /bin/rpm<BR>
blacklist /bin/pipeline<BR>
blacklist /bin/mv<BR>
blacklist /bin/cp<BR>
blacklist /bin/csh<BR>
blacklist /bin/dd<BR>
blacklist /bin/chmod<BR>
blacklist /bin/chown<BR>
blacklist /bin/dash<BR>
blacklist /bin/df<BR>
blacklist /bin/dmesg<BR>
blacklist /bin/ed<BR>
blacklist /bin/find<BR>
blacklist /bin/grep<BR>
blacklist /bin/exec<BR>
blacklist /bin/gunzip<BR>
blacklist /bin/gzip<BR>
blacklist /bin/gzexe<BR>
blacklist /bin/ln<BR>
blacklist /bin/login<BR>
blacklist /bin/lsblk<BR>
blacklist /bin/mail<BR>
blacklist /bin/mailx<BR>
blacklist /bin/mkdir<BR>
blacklist /bin/mksh<BR>
blacklist /bin/mknod<BR>
blacklist /bin/netstat<BR>
# blacklist /bin/ps<BR>
blacklist /bin/pwd<BR>
blacklist /bin/pipeline<BR>
blacklist /bin/rmdir<BR>
blacklist /bin/tcsh<BR>
blacklist /bin/touch<BR>
blacklist /bin/vi<BR>
blacklist /bin/zsh<BR>
blacklist /bin/tar<BR>
blacklist /bin/zless<BR>
blacklist /bin/zmore<BR>
blacklist /bin/more<BR>
blacklist /bin/date<BR>
blacklist /bin/dmesg<BR>
blacklist /bin/ash<BR>
blacklist /bin/awk<BR>
blacklist /bin/cg*<BR>
blacklist /bin/cd<BR>
blacklist /bin/bashb*<BR>
blacklist /bin/cat<BR>
blacklist /bin/env<BR>
blacklist /bin/get*<BR>
blacklist /bin/for*<BR>
blacklist /bin/homeof<BR>
blacklist /bin/foreground<BR>
blacklist /usr/bin/rpm*<BR>
blacklist /usr/bin/srm<BR>
blacklist /usr/bin/shred<BR>
blacklist /usr/bin/wipe<BR>
blacklist /usr/bin/mount*<BR>
blacklist /usr/bin/umount*<BR>
blacklist /usr/bin/mouse*<BR>
blacklist /usr/bin/ls*<BR>
# blacklist /usr/bin/r*<BR>
# blacklist /usr/bin/a*<BR>
# blacklist /usr/bin/c*<BR>
# blacklist /usr/bin/e*<BR>
# blacklist /usr/bin/f*<BR>
# blacklist /usr/bin/h*<BR>
# blacklist /usr/bin/i*<BR>
# blacklist /usr/bin/j*<BR>
# blacklist /usr/bin/perl*<BR>
# blacklist /usr/bin/s*<BR>
# blacklist /usr/bin/t*<BR>
# blacklist /usr/bin/u*<BR>
# blacklist /usr/bin/v*<BR>
# blacklist /usr/bin/w*<BR>
# blacklist /usr/bin/x*<BR>
# blacklist /usr/bin/y*<BR>
# blacklist /usr/bin/z*<BR>
blacklist /usr/libexec/mysql*<BR>
blacklist /usr/bin/mysql*<BR>
blacklist /usr/share/autostart<BR>
read-only /usr/share/cups<BR>
read-only /usr/share/cups/model<BR>
blacklist /usr/share/doc<BR>
blacklist /var/www<BR>
blacklist /var/www/html
<BR><BR>
# VirtualBox
blacklist DOLLAR{HOME}/.VirtualBox<BR>
blacklist DOLLAR{HOME}/VirtualBox VMs<BR>
blacklist DOLLAR{HOME}/.config/VirtualBox<BR>
<BR>
# VeraCrypt<BR>
blacklist DOLLAR{PATH}/veracrypt<BR>
blacklist DOLLAR{PATH}/veracrypt-uninstall.sh<BR>
blacklist /usr/share/veracrypt<BR>
blacklist /usr/share/applications/veracrypt.*<BR>
blacklist /usr/share/pixmaps/veracrypt.*<BR>
blacklist DOLLAR{HOME}/.VeraCrypt<BR>
<BR>
# var<BR>
blacklist /var/spool/cron<BR>
blacklist /var/spool/anacron<BR>
blacklist /var/run/acpid.socket<BR>
blacklist /var/run/minissdpd.sock<BR>
blacklist /var/run/rpcbind.sock<BR>
blacklist /var/run/mysqld/mysqld.sock<BR>
blacklist /var/run/mysql/mysqld.sock<BR>
blacklist /var/lib/mysqld/mysql.sock<BR>
blacklist /var/lib/mysql/mysql.sock<BR>
blacklist /var/run/docker.sock<BR>
<BR>
# etc<BR>
blacklist /etc/cron.*<BR>
blacklist /etc/profile.d<BR>
blacklist /etc/rc.local<BR>
blacklist /etc/anacrontab<BR>
blacklist /etc/rpc*<BR>
blacklist /etc/rpm*<BR>
blacklist /etc/rc*<BR>
blacklist /etc/init.d<BR>
read-only /etc/printcap<BR>
blacklist /etc/pmount*<BR>
read-only /etc/PolicyKit<BR>
read-only /etc/php.ini<BR>
read-only /etc/passwd<BR>
read-only /etc/paper*<BR>
blacklist /etc/mpasswd<BR>
blacklist /etc/modprobe*<BR>
blacklist /etc/mke2fs*<BR>
blacklist /etc/libuser.conf<BR>
blacklist /etc/libvirt<BR>
blacklist /etc/ld.so*<BR>
read-only /etc/kde<BR>
blacklist /etc/init*<BR>
blacklist /etc/incron*<BR>
blacklist /etc/resolv.conf<BR>
blacklist /etc/host*<BR>
blacklist /etc/gshadow*<BR>
blacklist /etc/fstab*<BR>
blacklist /etc/freshclam*<BR>
blacklist /etc/dracut*<BR>
read-only /etc/Dir_COLORS*<BR>
blacklist /etc/dhcp*<BR>
read-only /etc/cups<BR>
blacklist /etc/crypttab*<BR>
blacklist /etc/cron*<BR>
blacklist /etc/csh*<BR>
blacklist /etc/cvs*<BR>
blacklist /etc/cpu*<BR>
blacklist /etc/conntrackd.conf<BR>
blacklist /etc/color*<BR>
blacklist /etc/cloud<BR>
blacklist /etc/clam*<BR>
blacklist /etc/chrony*<BR>
blacklist /etc/chilli*<BR>
read-only /etc/bash*<BR>
blacklist /etc/at<BR>
blacklist /etc/asound*<BR>
blacklist /etc/aide*<BR>
<BR>
# General startup files<BR>
read-only DOLLAR{HOME}/.xinitrc<BR>
read-only DOLLAR{HOME}/.xserverrc<BR>
read-only DOLLAR{HOME}/.profile<BR>
<BR>
# Shell startup files<BR>
read-only DOLLAR{HOME}/.antigen<BR>
read-only DOLLAR{HOME}/.bash_login<BR>
read-only DOLLAR{HOME}/.bashrc<BR>
read-only DOLLAR{HOME}/.bash_profile<BR>
read-only DOLLAR{HOME}/.bash_logout<BR>
read-only DOLLAR{HOME}/.zsh.d<BR>
read-only DOLLAR{HOME}/.zshenv<BR>
read-only DOLLAR{HOME}/.zshrc<BR>
read-only DOLLAR{HOME}/.zshrc.local<BR>
read-only DOLLAR{HOME}/.zlogin<BR>
read-only DOLLAR{HOME}/.zprofile<BR>
read-only DOLLAR{HOME}/.zlogout<BR>
read-only DOLLAR{HOME}/.zsh_files<BR>
read-only DOLLAR{HOME}/.tcshrc<BR>
read-only DOLLAR{HOME}/.cshrc<BR>
read-only DOLLAR{HOME}/.csh_files<BR>
read-only DOLLAR{HOME}/.profile<BR>
read-only DOLLAR{HOME}/.gnugp*<BR>
read-only DOLLAR{HOME}/gnupg<BR>
<BR>
# Initialization files that allow arbitrary command execution<BR>
read-only DOLLAR{HOME}/.caffrc<BR>
read-only DOLLAR{HOME}/.dotfiles<BR>
read-only DOLLAR{HOME}/dotfiles<BR>
read-only DOLLAR{HOME}/.mailcap<BR>
read-only DOLLAR{HOME}/.exrc<BR>
read-only DOLLAR{HOME}/_exrc<BR>
read-only DOLLAR{HOME}/.vimrc<BR>
read-only DOLLAR{HOME}/_vimrc<BR>
read-only DOLLAR{HOME}/.gvimrc<BR>
read-only DOLLAR{HOME}/_gvimrc<BR>
read-only DOLLAR{HOME}/.vim<BR>
read-only DOLLAR{HOME}/.emacs
read-only DOLLAR{HOME}/.emacs.d<BR><BR>
read-only DOLLAR{HOME}/.nano<BR>
read-only DOLLAR{HOME}/.tmux.conf<BR>
read-only DOLLAR{HOME}/.iscreenrc<BR>
read-only DOLLAR{HOME}/.muttrc<BR>
read-only DOLLAR{HOME}/.mutt/muttrc<BR>
read-only DOLLAR{HOME}/.msmtprc<BR>
read-only DOLLAR{HOME}/.reportbugrc<BR>
read-only DOLLAR{HOME}/.xmonad<BR>
read-only DOLLAR{HOME}/.xscreensaver<BR>
read-only /etc/X11<BR>
# The user ~/bin directory can override commands such as ls<BR>
read-only DOLLAR{HOME}/bin<BR>
# top user<BR>
blacklist DOLLAR{HOME}/.ssh<BR>
blacklist DOLLAR{HOME}/.cert<BR>
blacklist DOLLAR{HOME}/.gnome2/keyrings<BR>
blacklist DOLLAR{HOME}/.kde4/share/apps/kwallet<BR>
blacklist DOLLAR{HOME}/.kde/share/apps/kwallet<BR>
blacklist DOLLAR{HOME}/.local/share/kwalletd<BR>
blacklist DOLLAR{HOME}/.config/keybase<BR>
blacklist DOLLAR{HOME}/.netrc<BR>
blacklist DOLLAR{HOME}/.gnupg<BR>
blacklist DOLLAR{HOME}/.caff<BR>
blacklist DOLLAR{HOME}/.smbcredentials<BR>
blacklist DOLLAR{HOME}/*.kdbx<BR>
blacklist DOLLAR{HOME}/*.kdb<BR>
blacklist DOLLAR{HOME}/*.key<BR>
blacklist DOLLAR{HOME}/.muttrc<BR>
blacklist DOLLAR{HOME}/.mutt/muttrc<BR>
blacklist DOLLAR{HOME}/.msmtprc<BR>
blacklist /home/surfuser/.gnupg<BR>
blacklist /etc/shadow<BR>
blacklist /etc/gshadow<BR>
# blacklist /etc/passwd<BR>
blacklist /etc/passwd-<BR>
blacklist /etc/group-<BR>
blacklist /etc/shadow-<BR>
blacklist /etc/gshadow-<BR>
blacklist /etc/passwd+<BR>
blacklist /etc/group+<BR>
blacklist /etc/shadow+<BR>
blacklist /etc/gshadow+<BR>
blacklist /etc/ssh<BR>
blacklist /var/backup
<BR><BR>
# system management<BR>
blacklist DOLLAR{PATH}/umount<BR>
blacklist DOLLAR{PATH}/mount<BR>
blacklist DOLLAR{PATH}/fusermount<BR>
blacklist DOLLAR{PATH}/su<BR>
blacklist DOLLAR{PATH}/sudo<BR>
blacklist DOLLAR{PATH}/xinput<BR>
blacklist DOLLAR{PATH}/evtest<BR>
blacklist DOLLAR{PATH}/xev<BR>
blacklist DOLLAR{PATH}/strace<BR>
blacklist DOLLAR{PATH}/nc<BR>
blacklist DOLLAR{PATH}/ncat
<BR><BR>
# system directories    <BR>
blacklist /sbin<BR>
blacklist /usr/sbin<BR>
blacklist /usr/local/sbin
<BR><BR>
# prevent lxterminal connecting to an existing lxterminal session<BR>
blacklist /tmp/.lxterminal-socket*
<BR><BR>
# disable terminals running as server resulting in sandbox escape<BR>
blacklist DOLLAR{PATH}/gnome-terminal<BR>
blacklist DOLLAR{PATH}/gnome-terminal.wrapper<BR>
blacklist DOLLAR{PATH}/xfce4-terminal<BR>
blacklist DOLLAR{PATH}/xfce4-terminal.wrapper<BR>
blacklist DOLLAR{PATH}/mate-terminal<BR>
blacklist DOLLAR{PATH}/mate-terminal.wrapper<BR>
blacklist DOLLAR{PATH}/lilyterm<BR>
blacklist DOLLAR{PATH}/pantheon-terminal<BR>
blacklist DOLLAR{PATH}/roxterm<BR>
blacklist DOLLAR{PATH}/roxterm-config<BR>
blacklist DOLLAR{PATH}/terminix<BR>
blacklist DOLLAR{PATH}/urxvtc<BR>
blacklist DOLLAR{PATH}/urxvtcd<BR>
blacklist DOLLAR{PATH}/xterm<BR>
blacklist DOLLAR{PATH}/konsole<BR>
blacklist DOLLAR{PATH}/rxvt<BR>
blacklist DOLLAR{PATH}/lxterminal<BR>
read-only /etc/firejail<BR>
blacklist /usr/bin/ssh*<BR>
blacklist /usr/bin/rlogin*<BR>
blacklist DOLLAR{HOME}/.gftp/cache<BR>
blacklist DOLLAR{HOME}/Dokumente<BR>
blacklist DOLLAR{HOME}/Video<BR>
blacklist DOLLAR{HOME}/Bilder<BR>
blacklist DOLLAR{HOME}/Audio<BR>
blacklist DOLLAR{HOME}/Texte</font>
<BR><BR>
Now start Pale Moon (similar Firefox with default.profile instead of palemoon.profile): 
<BR><BR>
<center><TABLE BORDER="1" bgcolor="#15fb9b" summary="commands"><TR><TD><font color="black">knemo &amp;&amp; sg surgruppe &quot;unshare firejail --nice=19 --profile=/etc/firejail/palemoon.profile /usr/lib64/palemoon/palemoon --no-remote &amp;&quot; &amp;&amp; sg surfgruppe &quot;tor -f /etc/tor/torrc&quto; &amp;&amp; export RESOLV_HOST_CONF=&quot;/etc/hosts&quot;</font></TD></TR></TABLE></CENTER>
<BR><BR>
It is possible to enter this command-line into a startup under &quot;command.&quot; to start Pale Moon by one mouseclick only.
<BR><BR>
Small disadvantage: Process firejail for the browser has to be killed, before any package-installations are possible. Generally all processed started by the user surfuser can be terminated through the command
&quot;killall -u surfuser&quot;, as dnsmasq might run under surfuser at least by the command &quot;killall firejail&quot; from time to time, before too many firejail are running, so that all still running firejail-processes terminate. It is recommended to create a small entry with user root in the K-Menu and/or the same entry for the task line.
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>General chroot and suid paranoia</B><BR>
<B>chroot</B> is one of the most powerful possibilities to restrict a daemon or a user or another service. Just imagine a jail around your target, which the target cannot escape from (normally, but there are still a lot of conditions that allow one to escape out of such a jail). You can eventually create a modified root environment for the user or service you do not trust. This can use quite a bit of disk space as you need to copy all needed executables, as well as libraries, into the jail. But then, even if the user does something malicious, the scope of the damage is limited to the jail.<BR>
Many services running as daemons could benefit from this sort of arrangement. The daemons that you install with your Debian distribution will not come, however, chrooted per default.<BR>
This includes: name servers (such as bind), web servers (such as apache), mail servers (such as sendmail) and ftp servers (such as wu-ftpd). It is probably fair to say that the complexity of BIND is the reason why it has been exposed to a lot of attacks in recent years (see Securing BIND, Section 5.7).<BR>
However, Debian does provide some software that can help set up chroot environments. See Making chrooted environments automatically (depicted in the following).<BR>
Anyway, if you run any service on your system, you should consider running them as secure as possible. This includes: revoking root privileges, running in a restricted environment (such as a chroot jail) or replacing them with a more secure equivalent.<BR>
However, be forewarned that a chroot jail can be broken if the user running in it is the superuser. So, you need to make the service run as a non-privileged user. By limiting its environment you are limiting the world readable/executable files the service can access, thus, you limit the possibilities of a privilege escalation by use of local system security vulnerabilities. Even in this situation you cannot be completely sure that there is no way for a clever attacker to somehow break out of the jail. Using only server programs which have a reputation for being secure is a good additional safety measure. Even minuscule holes like open file handles can be used by a skilled attacker for breaking into the system. After all, chroot was not designed as a security tool but as a testing tool.<BR>
<B>Making chrooted environments automatically</B><BR>
There are several programs to chroot automatically servers and services. Debian currently (accepted in May 2002) provides Wietse Venema&#180;s <B>chrootuid</B> in the chrootuid package, as well as <B>compartment</B> and <B>makejail</B>. These programs can be used to set up a restricted environment for executing any program (chrootuid enables you to even run it as a restricted user).<BR>
Some of these tools can be used to set up the chroot environment easily. The makejail program for example, can create and update a chroot jail with short configuration files (it provides sample configuration files for bind, apache, postgresql and mysql). It attempts to guess and install into the jail all files required by the daemon using strace, stat and Debian&#180;s package dependencies. More information at http://www.floc.net/makejail/. Jailer is a similar tool which can be retrieved from http://www.balabit.hu/downloads/jailer/ and is also available as a Debian package. <BR>
https://www.debian.org/doc/manuals/securing-debian-howto/ch-sec-services.en.html#s-chroot
<BR><BR>
<B>But back to our text about LINFW3: Notice, that the NEW-LINE-BLOCK-only of Linfw3 prevents form all hacker except on established connections opened by the surfer, but not from any backdoors resp. trojans! Always try to use the NEW-LINE-BLOCK with the UID-( and/or GID-)owner-concept for surfuser and surfgroup together with the port-concept, while updates can be performed in the same way by root as the surfuser (and/or surfgroup)! Both, ALLOW-ROOT_LOGIN and ROOT_LOGIN shall be set to &quot;no&quot; and all access-rights upon directories and files set adequately. The computer-system will almost get serious hard hacked, if all this is not regarded!</B>
<BR><BR>
<i>mouseclick-fast</i> work with the computer also has no chance to take into negative effect by following the methods of our excurs. For an always good and fast mount and umount of the USB-stick, actualize the filesystems to reisferfsprogs-3.6.24, e2fsprogs (1.43.2 from September 2016) resp. btrfs and manage the integration of the module usb_storage by modprobe. This module guarantees the fast secure mount and secure unmount of usb-media. To integrate it permanently for mdv2010 and other Linux, type into file /etc/modprobe.preload. If command chattr should keep its function instead, do not update the filesystem for loosing some kind of &quot;id for owner-rights&quot; But in this case, not much gets restricted, if chattr was not used before.
<BR><BR>
<font color="green"><B>Our extra security-tip: Always click onto networkmanager-applet&#180;s (el6), &quot;exit&quot; after the first dial-in into resp. after building up the first connection to the internet!</B></font>
<BR><BR>
MAC Tomoyo profiles: /etc/tomoyo/*, kernel-boot-options security=tomoyo tomoyo=1.
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">
<font style="font-size: 9pt" color="green">
# apparmor: application MAC-protection-shield and MAC-kernel-security-module to load within /boot/grub/menu.lst (grub1) by option security=apparmor apparmor=1<BR>
# dbus-apparmor&amp;# within /etc/rc.local<BR>
# /usr/lib64/apparmorapplet&amp;# /etc/rc.local<BR>
# example: apparmor_parser -af /etc/apparmor/profiles/extras/usr.lib.firefox.firefox &&amp;/usr/bin/firefox # ( resp., still in order not to resign from firejail as introduced:   ...&&amp;sg surfgroup &quot;firejail --profile=/etc/firejail/firefox-esr.profile /usr/bin/firefox&quot; )<BR>
# /etc/apparmor/profiles/extras/* :<BR>
885 23. Jul 15:03 bin.netstat<BR>
1247 23. Jul 15:03 etc.cron.daily.logrotate<BR>
955 23. Jul 15:03 etc.cron.daily.slocate.cron<BR>
729 23. Jul 15:03 etc.cron.daily.tmpwatch<BR>
1733 23. Jul 15:03 README<BR>
1934 23. Jul 15:03 sbin.dhclient<BR>
1297 23. Jul 15:03 sbin.dhcpcd<BR>
682 23. Jul 15:03 sbin.portmap<BR>
855 23. Jul 15:03 sbin.resmgrd<BR>
489 23. Jul 15:03 sbin.rpc.lockd<BR>
1010 23. Jul 15:03 sbin.rpc.statd<BR>
1655 23. Jul 15:03 usr.bin.acroread<BR>
791 23. Jul 15:03 usr.bin.apropos<BR>
4569 23. Jul 15:03 usr.bin.evolution-2.10<BR>
697 23. Jul 15:03 usr.bin.fam<BR>
750 23. Jul 15:03 usr.bin.freshclam<BR>
1918 23. Jul 15:03 usr.bin.gaim<BR>
595 23. Jul 15:03 usr.bin.man<BR>
618 23. Jul 15:03 usr.bin.mlmmj-bounce<BR>
1041 23. Jul 15:03 usr.bin.mlmmj-maintd<BR>
1096 23. Jul 15:03 usr.bin.mlmmj-make-ml.sh<BR>
884 23. Jul 15:03 usr.bin.mlmmj-process<BR>
587 23. Jul 15:03 usr.bin.mlmmj-recieve<BR>
766 23. Jul 15:03 usr.bin.mlmmj-send<BR>
821 23. Jul 15:03 usr.bin.mlmmj-sub<BR>
803 23. Jul 15:03 usr.bin.mlmmj-unsub<BR>
2017 23. Jul 15:03 usr.bin.opera<BR>
1003 23. Jul 15:03 usr.bin.passwd<BR>
1025 23. Jul 15:03 usr.bin.procmail<BR>
1132 23. Jul 15:03 usr.bin.skype<BR>
580 23. Jul 15:03 usr.bin.spamc<BR>
904 23. Jul 15:03 usr.bin.svnserve<BR>
1185 23. Jul 15:03 usr.bin.wireshark<BR>
674 23. Jul 15:03 usr.bin.xfs<BR>
1022 23. Jul 15:03 usr.lib64.GConf.2.gconfd-2<BR>
857 23. Jul 15:03 usr.lib.bonobo.bonobo-activation-server<BR>
1258 23. Jul 15:03 usr.lib.evolution-data-server.evolution-data-server-1.10<BR>
1604 23. Jul 15:03 usr.lib.firefox.firefox<BR>
386 23. Jul 15:03 usr.lib.firefox.firefox.sh<BR>
654 23. Jul 15:03 usr.lib.firefox.mozilla-xremote-client<BR>
1018 23. Jul 15:03 usr.lib.GConf.2.gconfd-2<BR>
1230 23. Jul 15:03 usr.lib.man-db.man<BR>
889 23. Jul 15:03 usr.lib.postfix.anvil<BR>
2101 23. Jul 15:03 usr.lib.postfix.bounce<BR>
1269 23. Jul 15:03 usr.lib.postfix.cleanup<BR>
530 23. Jul 15:03 usr.lib.postfix.discard<BR>
626 23. Jul 15:03 usr.lib.postfix.error<BR>
1701 23. Jul 15:03 usr.lib.postfix.flush<BR>
624 23. Jul 15:03 usr.lib.postfix.lmtp<BR>
1839 23. Jul 15:03 usr.lib.postfix.local<BR>
1887 23. Jul 15:03 usr.lib.postfix.master<BR>
2443 23. Jul 15:03 usr.lib.postfix.nqmgr<BR>
607 23. Jul 15:03 usr.lib.postfix.oqmgr<BR>
859 23. Jul 15:03 usr.lib.postfix.pickup<BR>
497 23. Jul 15:03 usr.lib.postfix.pipe<BR>
709 23. Jul 15:03 usr.lib.postfix.proxymap<BR>
2464 23. Jul 15:03 usr.lib.postfix.qmgr<BR>
626 23. Jul 15:03 usr.lib.postfix.qmqpd<BR>
670 23. Jul 15:03 usr.lib.postfix.scache<BR>
2260 23. Jul 15:03 usr.lib.postfix.showq<BR>
1842 23. Jul 15:03 usr.lib.postfix.smtp<BR>
2120 23. Jul 15:03 usr.lib.postfix.smtpd<BR>
626 23. Jul 15:03 usr.lib.postfix.spawn<BR>
791 23. Jul 15:03 usr.lib.postfix.tlsmgr<BR>
904 23. Jul 15:03 usr.lib.postfix.trivial-rewrite<BR>
628 23. Jul 15:03 usr.lib.postfix.verify<BR>
788 23. Jul 15:03 usr.lib.postfix.virtual<BR>
1339 23. Jul 15:03 usr.lib.RealPlayer10.realplay<BR>
1074 23. Jul 15:03 usr.NX.bin.nxclient<BR>
1120 23. Jul 15:03 usr.sbin.cupsd<BR>
864 23. Jul 15:03 usr.sbin.dhcpd<BR>
6148 23. Jul 15:03 usr.sbin.httpd2-prefork<BR>
818 23. Jul 15:03 usr.sbin.imapd<BR>
652 23. Jul 15:03 usr.sbin.in.fingerd<BR>
1279 23. Jul 15:03 usr.sbin.in.ftpd<BR>
590 23. Jul 15:03 usr.sbin.in.ntalkd<BR>
825 23. Jul 15:03 usr.sbin.ipop2d<BR>
825 23. Jul 15:03 usr.sbin.ipop3d<BR>
1365 23. Jul 15:03 usr.sbin.lighttpd<BR>
756 23. Jul 15:03 usr.sbin.mysqld<BR>
920 23. Jul 15:03 usr.sbin.nmbd<BR>
830 23. Jul 15:03 usr.sbin.oidentd<BR>
735 23. Jul 15:03 usr.sbin.popper<BR>
1331 23. Jul 15:03 usr.sbin.postalias<BR>
1017 23. Jul 15:03 usr.sbin.postdrop<BR>
829 23. Jul 15:03 usr.sbin.postmap<BR>
1091 23. Jul 15:03 usr.sbin.postqueue<BR>
3435 23. Jul 15:03 usr.sbin.sendmail<BR>
2061 23. Jul 15:03 usr.sbin.sendmail.postfix<BR>
1564 23. Jul 15:03 usr.sbin.sendmail.sendmail<BR>
946 25. Mai 2012  usr.sbin.slapd<BR>
1140 23. Jul 15:03 usr.sbin.smbd<BR>
1068 23. Jul 15:03 usr.sbin.spamd<BR>
1686 23. Jul 15:03 usr.sbin.squid<BR>
3691 23. Jul 15:03 usr.sbin.sshd<BR>
1310 23. Jul 15:03 usr.sbin.useradd<BR>
1344 23. Jul 15:03 usr.sbin.userdel<BR>
1073 23. Jul 15:03 usr.sbin.vsftpd<BR>
2413 23. Jul 15:03 usr.sbin.xinetd</font>
<BR><BR>
<CENTER><TABLE BORDER="1" bgcolor="#15fb9b"><TR><TD><font color="black">usb_storage</font></TD></TR></TABLE></CENTER>
<BR><BR>
We never got any delays during the secure umount of USB-sticks anymore.
<BR><BR>
<font color="green">mdv2010 <i>mouseclick-fast</i>: Linux runs faster than Windows: <i>mouseclick-fast</i> mdv2010 on SSD. The code of Linux seems to be architectured and optimized well. Nevertheless even Linux can run slow too. Before we ask us, how this can happen and which software to install, we are interested in cpu and RAM killing daemons to deinstall resp. remove from harddisc. That are processes running in the background, for what we need a good process-manager indicating resource-consumption in percent. Therefore we have to start programs like ptree, &quot;ps -All&quot;, System&uuml;berwachung or just by pressing the keys &quot;ESC&quot; and &quot;STRG&quot;.  In our case packagekit with an enormous consumption of around always 40% was found out to install him for el6, same for nspluginwrapper, leading us to set chmod 000 /usr/bin/nspluginscan. Think about kio_thumbnail, that gets started sometimes for creating symbols within the filemanager for certain files, in dolphin depending on the configuration for preview. The capacities reducing process named &quot;prelinking&quot; should almost be tolerated instead:
<BR><BR> 
<cite>&quot;prelink is a program that modifies ELF shared libraries and ELF dynamically linked binaries in such a way, that the time needed for the dynamic linker to perform relocations at startup significantly decreases.  Due to fewer relocations, the run-time memory consumption decreases as well (especially the number of  unshareable  pages). The prelinking information is only used at startup time if none of the dependent libraries have changed since prelinking; otherwise programs are relocated normally.&quot;</cite>
<BR><BR>
Depending on configuration in MCC-security, msec_find checks periodically, during the boot or never. In MCC, security, periodical checks you can set many msec-checks from daily to weekly, even better to &quot;manual&quot;, if your mainboard does not have more than one #SMP (CPU). After surfing as surfuser or other communications within the net, all processes started by surfuser should be killed again: killall -u surfuser. See our data-sheed: With our decision for mdv2010 and a SSD this aim got reached once more. Also beware the recommended frequency for the RAM-Modules mentioned in the manual the mainboard not to plug in one of a lower frequency. Then all went mouseclick fast already by the mainboard model DDR2 533 Mhz (or higher) 19W, that is recommended in the data sheed below. We already got 533Mhz-nonames assembled in Germany - for free before ... working fine (in spite of DDR2 Kingston 1GB 333 Mhz)! Do not forget: The computer-system with SSD is running once more mouseclick fast, if hdparm (omv2015, rosa2014.1, el7, el6) and sdparm (omv2015, rosa2014.1, el7, el6) is installed.</font>
<BR><BR>
<CENTER><TABLE BORDER="1" bgcolor="#15fb9b"><TR><TD><font color="black" style="font-size:12pt">SSD resp. HDD capacity used &lt;=80%</font></TD></TR></TABLE></CENTER>
<BR><BR>
<font color="green">Boot-problems, do you have any problems during the booting? Just press the key for &quot;i&quot; for the interactive mode past the short message with udev. Now, by dialogs,  it is possible to start each process manually or to resign from a process during the booting. On problems with the X-Server (graphic-card driver), start all processes except the display manager named &quot;dm&quot;. On runlevel four less then five  the terminal helps to enter all kind of commands to do the next things (like reinstalling the device driver or downgrading the X-Server from mdv2010.2 to mdv2010.0 by rpm again). 
Be careful with the installation of further kernel, as some links in /boot (boot-partition) can mismatch refering to the settings in /boot/grub/menu.lst. Then you have to relink them by &quot;;ln -sf TARGET linkfile&quot; by booting with a repair-CD, a repair-USB-stick or a backuped, mirrored media (we do recommend anyway), in order to mount the boot-partition.  
</font>
<BR><BR>
<font color="green"><B>SSD-harddiscs are even better than the manufacturer do specify</B></font><BR>
publised article from 18. Juni 2014, 08:38 from admin,  http://www.ahrens.de/ssd-festplatten-sind-noch-besser-als-die-hersteller-angeben/24906<BR>
SSDs are the better replacement for magnetic harddrives, for there do not consist of any mobile parts and hence they are up to 100 &times; faster during reads and 20 &times; durings writes and they seemed to be work quit endless. Test show, that they do not only work superfast, but also endure ten times longer as their manunfacturer promise. You can read the explicit test report on Golem.
<BR><BR>
Online update sources: http://fr2.rpmfind.net (FTP-downloads, here for el6, el7, mdv and mga) and http//pkgs.org (http-downloads for el6, el7, fc down to fc xx, mga down to mga xx), http://rpm.pbone.net/ (http- and ftp-downloads, el6, el7, all popular distros and versions)
<BR><BR>
The many security-checks within MCC, especially sectools, should be set from &quot;daily&quot;, &quot;monthly&quot; and so on to &quot;manually&quot;, in order to prevent irritating backgroud-processes.
<BR><BR>
MCC gives the opportunity in Network-&gt,Network-Center to enable and disable tcp-timestamp, tcp-windows-scaling and dynamic IPv6. IPv6 uses static IP, so latter disabling is recommended. 
<BR><BR>
29. October 2014, 08:49 Uhr, heise open<BR>
&quot;The CentOS-team has released Version 6.6 of their Linux-distribution. It sources in Red Hat Enterprise Linux (RHEL) with the same version number Red Hat published two weeks ago. Therefore the new CentOS includes  all improvements, under it a plenty of new and actualized driver, a device-mapper-target for the mount of a SSD as a cache for slow storage-media and the intergration of the High Performance Networking (HPN) that was costly up to now. You can get CentOS for free. It  promises compatiblity to many distributions and is going to be fostered for a long time. Therefore the already some years old <font color="green" style="font-size: 12pt"><B>CentOS 6 can be updated by security updates until the 30 of november 2026</B></font>. Scientificlinux alias CentOS 6.7 is the second clone of RHEL 6.6, for Oracle has released the also cloned from this Oracle Linux 6.6 some days ago.&quot; 
<BR><BR>
We found many packages by name already in SuSE 7.3 from year 2003 and Mandrake mdk10.0 from year 2004. The code of their includes must be read out well and better each day. Actual Gentoo-GLSA provides one of the best overview of updates for Linux: https://security.gentoo.org/glsa/, descended ordered by time. Typical cases for updates refer to arbitrary code execution, multiple vulnerabilities (especially buffer overflow), denial of service and information disclosure.In order to make the installation of listed updates possible, glibc has to be actualized. Not all updates from the listed ones like cpio should be installed, while those for tar, bzip, freetype rpm, openssl (tarball) and many other ones do function. Try the belonging tarballs or downgrade again, if not. Notice, that updates provided for the distribution, except named exceptions below, are almost sufficient, for mdv2010.1 and mdv2010.2 you can find them on ftp://fr2.rpmfind.net/linux/Mandriva/official/2010.1/x86_64/media/contrib/updates. fr2.rpmfind.net is a good installation and update source for most linux distribution except Debian (with its own deb-packages). Before a computer system gets updated, it always should be secured completely! For detailed troubleshooting, cases we did not have with mdv2010, sources out of the internet and newsgroup alt.linux.suse might be helpfuf too.
<BR><BR>
Linux permanently gets functional extended and therefore also the applications and libraries. Packet-Versions change as the distribution its version (by their own version-numbers) do. <font color="green"><B>In order to make a distribution error-free</B></font> like in our example mdv2010, use a linux-friendly mainboard and install only those packets (and tarballs), that are belonging to the same installed version of a most complex distribution past 2003. In our example they are always ending with &quot;...mdv2010&quot;. Pakets of next higher versions like mdv2011 should interest only after upgrading the glibc adequately or experimental. Nevertheless, also think of all the updates referring to the same distribution and its version, marked by name ending with &quot;...version[distributionversion).update-number&quot;. To find such packages, take the installation-DVD/CD and make queries for rpmfind.net resp. mirror fr2.rpmfind.net. There, in the resulting listings, all packages are named explicitly in that way, that means by belonging distribution and version, but this might be the exception For mdv2010 a kernel-upgrade to mdv2012 by rpm-packages is possible. We do not recommend to change the distribution from mandriva to any other except many packages from Scientificlinux resp. ALT Linux resp. CentOS 6.7.
<BR><BR>
Does mdv2010 meet Fedora, actual fc23? Although mdv2010.1 and especially 2010.2 do not need any updates, you can upgrade mdv2010 to any actual linux, by installing the downward compatible C-standard-library glibc of rosa2014.1, mdv2012 or mga3 without rpm glibc itself out of glib2.0-common (fastest: actual pateched el6 or the sixtimes patched one from rosa2014.1 or mga3), glibc (el8, pclos, mga7, mga5, rosa2014.1), glibc-utils (el8, mga7, mga5, el6, rosa2014.1 or mga3), glibc-headers (el8), glibc-common (el8), glibc-utils (el8), glibc-all-langpacks (el8) glibc-profile (mga7, mga5, rosa2014.1 or mga3), glibc-static (el6) or glibc-static-devel (rosa2014.1, mga3), glibc-devel (rosa2014.1 or mga3), glibc-i18ndata (mga7, mga5, rosa2014.1 or mga3), glibc_lsb (mga3), libc6, mm-common (mga3), lib64glimm2 (mdv2010), gettext (rosa2014.1 or mga3), lib64gettext-misc (rosa2014.1), lib64gettextpo0 (rosa2014.1), lib64intl8 (rosa2014.1), lib64png16 (rosa2014.1), glib-networking (el6), lib64nspr4, lib64nss3, locales (rosa2014.1 or mga3), locales-en, locales-de, locales-fr, locales.jp and further more locales and the C++-standard-library stdcc++, all for x86_64 and i586, by &quot;;rpm -U --force --nodeps&quot;. For glibc DO NOT INSTALL MORE mga3 OR mdv2012 than the listed ones! Now the hugh gate to any ultimative-<i>mouseclick-fast</i> working linux world on SSD, even actual linux like today&#180;s Fedora core 24, has opened for largest amount of software ever (even if not all of it)! You can upgrade and downgrade like by &quot;elevators&quot; reaching floors of distros and versions provided by listings from fr2.rpmfind.net. Warning: This does not function with all glibc without needing many other packages! You do not need them anymore. We repeat that software should do its function, while the rest is almost made secure by our excurs. After that we might install an actual version of the filesytem like e2fsprogs (1.43.2), reiserfsprogs (omv2015, mdv2011 or el7, el6), btrfsprogs and many updates recommended by Gentoo-GLSA, url see below. At last for our Linux-tuning, following the new filesystem-rpm, copy all files of /lib to /usr/lib, /lib64/* to /usr/lib64, /bin/* to /usr/bin, /sbin/* to /usr/sbin. After all the operations upon glibc, Linux is not able to run faster in future.
<BR><BR>
glibc (el8, pclos, mga7, mga5, rosa, mga3, mdv2012) complete for x86_64 (64 bit cpu), analogous i586 (32 bit), without making any problems: glibc (mga7, mga5), glibc-headers (el8), glibc-common (el8), glibc-utils (el8), glibc-all-langpacks (el8), glibc-devel, libc6, glibc-i18ndata (mga7, mga5), glibc-profile (mga7, mga5), glibc-utils (mga7, mga5), glibc_lsb, gettext, locales, locales-en, locales-de, ..., gettext-base, lib64gettext-misc, lib64gettext-po0, lib64intl8, lib64png16, glib-gettextsize, glib-networking, glib2.0-common, lib64gio2, lib64glib-networking, lib64glib2.0, lib64glib2.0-devel, lib64glibmm2, lib64gmodule2, lib64gobject2, lib64ffi6, lib64gthread2, lib64stdc++, lib64QtGlib2.0, lib64packagekit-glib2 and prelink or glib2 (el7 or el6 instead of lib64gthread2 (rosa2014.1), lib64gio2 (rosa2014.1) and lib64gobject2 (rosa2014.1), we installed this one for this is el6 )
<BR><BR>
In order to avoid error-messages of glibc (el8) during system-boot, just remove the line LC_TIME=de_DE.UTF-8 in /etc/sysconfig/i18n ! Eventually install locales (pclos, mga7, mga6), locales-en, locales-de, ... too.
<BR><BR>
We decided us for the following GNU C Standard Library glibc:
<BR><BR>
glibc (el8, pclos, mga7, mga5, rosa2014.1), glibc-headers (el8), glibc-common (el8), glibc-utils (el8), glibc-all-langpacks (el8), libc6 (rosa2014.1), compat-glibc (el6), glibc-common (el6), glibc-i18ndata (mga7, mga5, rosa2014.1), glibc-headers (el8, el6), glibc-static (el6), glibc-utils (mga7, mga5, el6), glibc-profile (mga7, mga5, rosa2014.1), glibc-glibc_lsb (rosa2014.1), locales (rosa2014.1), glib2 (el6), prelink (rosa2014.1), lib64stdc++ (fc, pclos, mga, rosa2014.1 und el6) oder auch alles mga7, mga5 oder rosa2014.1
<BR><BR>
Paket-manager drakrpm offers the option named like &quot;store in cache&quot; in the menu for the seldom cases, where dependencies of packages are not solved correctly. Whenever this happens, downloaded packages should be copied from /var/cache/urpmi/rpm resp. /var/cache/urpmi/partial to any secure place for reinstallaton.  
<BR><BR>
Depending on the graphic-card-driver x11-driver-video-name, for our platform with name=intel choose the X11-Server for mdv2010.0 even before mdv2010.1 refering to all files beginning with x11-server by name. Library-packages have to be installed for the X-Server too that are quit unknown in this context for you. To go sure with the X11-server of mdv2010.1, install all library-packages (lib64....rpm) you need for the program-packages at first, before the installation of the X-Server of mdv2010.1 takes place. So one of the last packages to update are those for the X-Server of mdv2010.1!
<BR><BR>
Either a programm is working or it is not, that means, it does its introduced functions or it does not. In the first case updates are seldom needed!
<BR><BR>
Be careful with the installation of many el6-packages. Some can restrict the functionality of mdv2010 (el6, el7), for expample usermode can effect the call by mouseclick of MCC. So collect all previous installed rpm of mdv2010 in a directory for possible reinstallation needs. 
<BR><BR>
For SMP#1 (mainboard with one CPU only),  wallpaper&#180;s fly mode of a wallpaper is not recommended.
<BR><BR>
Method for prevention: already mentioned encryption of the partitons of the harddrive, also from USB-media, at least the encryption of some certain files. You see by all the already red marked passages and text: Although we dare to talk about security for the computer and although all payed amounts and sums in conjunction with computer should be transfered back, of course it is never learnt out. 
<a name="SICHERUNG"></a>
<BR><BR>
<center><font style="font-size: 12pt">Data backup and restore</font></center>
<BR><BR>
<B>Always keep all installation-packets accessible. During installation phases, even mdv2010 can conflict in some unsolved of the quit infinite package-dependencies.Check out some programs, if the stell do start and run. If the shell or any program does not, use a terminal to start them in order to watch out error-messages as the cause (for packages) why not, in more serious cases use the prefix strace: &quot;strace command-executable-file&quot;. </B>If mdv is not booting correctly, the key &quot;i&quot; should be pressed to get into the interactive mode, where almost all should be started except the displaymanager dm. 
<BR><BR>
You can save your SSD possibly forever! Not only two SSD or one more harddrive are needed, you also need a bootable USB-stick or Mindi or Mondo or a Knoppix from DVD resp. on a 250 MB sized partition to execute the command dd for the backup and restore of partitions. 
<BR><BR>
Recommended (PCWelt, 08.08.2015) commands are rsync or fontend grsync, alternatively rdiff, all packages resp. commands are provided for mdv2010. For SSD, in order to save power, work reliable and abstract, we recommend one more SSD or a magnetic backup harddisk, where partitions have to be mirrored 1:1 by partiton manager, rsync its helpful frontend grsync, the command rdiff or special mirror-commands. Such commands full of options really do their best, even over SSH. But for local backups and restores, that means, if you ask us, we just prefer the simple command <font color="green"><B>dd</B></font> resp. safecopy, depictied below: unbeatbale! Although SSDs do not like dd very much by taking their time with it, dd always seems to reach its end at any time (dd works around 1 GiB per Minute refering to our SSD), or use dd-replacement safecopy, if not. Notice, that dd still does not provide any progress-bar. But do not believe in fairy tales as this certain country is known for, perfer dd, as for example neither the operating system nor oneself does know exactly, what all to backup, which partitions, directories and files, in order to pevent the worst one can happen: new installation, problems during restauration, file manipulation after hacker attacks with vandalism and/or data loss. So resign from so called backup-programs by backuping and restoring always 1:1-partitionwise with dd, here partition sda1 onto partition sdb1: 
<BR><BR>
<CENTER><TABLE BORDER="1" bgcolor="#15fb9b"><TR><TD><font color="black">dd if=/dev/sda1 of=/dev/sdb1</font></TD></TR></TABLE></CENTER> 
<BR><BR>
Use sdd instead of dd to see a progressbar.
<BR><BR>
<B>With the reliable dd, your partitions get always restored, if damaged.</B> Therefore never use any other backup-programs for your partitions, don&#180;t be such fool ! It is dd always terminating fine, only not in the case, its environment got damaged, in our example Knoppix from an own partition from SSD resp. harddisc or DVD. Therefore keep the Knoppix-partition on all media, the backuped one and its backupening, beneath Knoppix on DVD and/or USB-Stick.
<BR><BR> 
The only disadvantage of dd is, that dd does not show any progress bar.
<BR><BR>
If you want to be even more clever for making backups than even dd allows, use dcfldd. This el6-rpm works on mdv2010 like dd, but does show a progressbar. Some more extensions enable fexible-disc-wipes, an resume on error, the estimation of md5-checksums using additional options like &quot;hash=md5&quot; and &quot;md5log=md5.txt&quot; and splitting the output-files.   
<BR><BR>
Although with dd all data backups managed well, even on SSD,  it is warned against the use of this command for SSD. http://ubuntuwiki.de/files/ssd/grundlagen.html :<BR>
<cite>dd does fills unused and empty sectors and blocks with zero, so that the essential spare-area of SSD will not be free anymore. Even the for speed (access-times) important alignment becomes absurd. 
The amount of write-operarations shortens its life-time.<BR> 
Therefore the command cp and rsync are recommended.[...]<BR>
Clonezilla advantages in transferring only the non-empty blocks during the data-transfer.</cite>
<a name="updatesupdaten"></a>
<BR><BR>
<center><font style="font-size: 12pt">Linux-Bot-Net, Heartbleed, Shellshock, glibc-Patch, Bad Cow, ... on the way to Zero Updates, zero Patches and zero Bugfixes</font></center>
<BR><BR>
Following distribution offer updates for mdv2010: omv2015, mga, rosa2014, mdv, fc, el7 and el6.
<BR><BR>
<B>In msec, set &quot;allow-root-login&quot; to &quot;yes&quot;, during the updating processes, in order to guarantee the usage of bash-commands and the work with the package-manager rpm.</B>
<BR><BR>
<B>Make a  1:1-partitionswise backup on an extern media by reliable (even on encrypted partitions) working commands like dd from rescue-DVD or Linux on USB-stick, that can be used for restoring too.</B>
<BR><BR>
One more aim of updating is to set &quot;allow-root-login&quot; again back to &quot;no&quot;, to move all logfiles to shm- (RAM-) directory /tmp, to set the root-partition to &quot;ro&quot; (read-only) and to deactivate the journalling feature of linux-filesystems. This is performed at the very end of this section for reiserfs.
<BR><BR>
<font color="red"><B>Many cases like bash with the so called Shellshock, glibc, Linux-botnets and openSSL and so on tell us about the of essentiality updates.</B></font>
<BR><BR>
Security leak &quot;Dirty Cow&quot; within the Linux-kernel enpossibles prohibited extension of access rights: http://www.pro-linux.de/news/1/24096/sicherheitsl&uuml;cke-im-linux-kernel-erm&ouml;glicht-lokale-rechteausweitung.html. In this report apparmor is mentioned, that might generally help. Start apparmor in the background for example in /etc/rc.local by /usr/lib64/apparmorapplet&amp;<BR>
<B>This security-lack is known by kernel-developer for many years. Nevertheless, with linfw3 and msec level.secure configured as introduced, Dirty Cow becomes no risk, as an intrusion into the system is conditioned, regardless from patching the kernel or not.</B>
Kernel 5.4.110 (PCLinuxOS2019) with mkinitrd (pclos, rosa, mga2), nash (pclos, rosa, mga2), dracut (mga6: version 044, el6: version 004 (leads into manual LUKS-password request even in the case of existing password-key-file!, mdv2011: version 008)) and glibc (el8, pclos, mga6) resp. kernel 2.6.39.4-5.1 (mdv2011) can be patched with patches from year 2011 up to date from http://repository.timesys.com/buildsources/k/kernel/kernel-2.6.39/. We made good experiences with this patched kernel.
<BR><BR>  
Plenty of packages of mdv2010 resp. mdv2011 can be updated with CentOS 6, CentOS 7, Rosa2014.1 and Rosa2012, except KDE-Akonadi-Nepomuk for interal dependency (mdv2010: Version 4.4.5) and a few single packages. KDE can be updated completely.
<BR><BR>
KDE 4.4.5 includes many updates as mentioned by the report http://var-log.de/page/6/ from year 2008: <cite>&quot;For the release of 4.2 the KDE-Team fixed thousand errors and builds in many new features missed in KDE 4.2. This beta release gives the oppurtunity to check last errors and bugs. The KDE Team has published a list with significant improvements in 4.2 Beta 2. Since the first beta less than four weeks ago, 1.665 new errors were found out and 2.243 ones got corrected. Sine the release of KDE 4.1.0 more than 10.000 errors wth a strong view upon the stability of KDE 4.2 were fixed  Past KDE 4.2 many monthly updates are expected and finally, in summer 2009, KDE 4.3. Signficant improvements of Plasma and KWin, the KDE Workspace... .&quot;</cite>
<BR><BR>
<B>Our KDE solution: KDE as a mix out of kde 4.4.5/4.4.9 (mdv2010.2, November 2011), kde-4.3.4 (el6, actual patched up to year 2026) and kde (4.4.4, OpenSuSE 11.2, end of year 2013)</B>
<BR><BR>
<font color="green">By mdv2010.0, mdv2010.1, mdv2010.2 and some mdv2011.0, most versions and releases of RPM-packages got fixed and patched well for functionality for around two years- similar to el6 and el7 from year 2010 to 2026. .<B> All update-rpm listed below will lead into an up to year 2026 actual, well functioning Linux</B>. Only the two up to five times patched KDE 4.4.5 (mdv2010.2) is not upgraded. You can keep it or try KDE (omv2015) or KDE of mandriva-successor Rosa2014.1 from pkgs.org for example. In the case of dependency-conflicts, dare to install by package-manager rpm with the option --force and --nodeps (analog Debian), if you keep the preceeding packages beneath you and if you care for the installation packages that are still required, listed by rpm during the installation-process.</font>
<BR><BR>
Except for Browser, bash and OpenSSL, mdv2010 and Linfw3 make it possible: processes for net-connections (inclusive server resp. all daemons resp. services to activate explicilty) have to be started, build-up and therefore posessed only by the password-protected user &quot;surfuser&quot; belonging to group &quot;surfgroup&quot;, while LINFW3 is blocking all other processes not started by surfuser, even those owned by root. The next thing, Linfw3 does, is opening only those ports belonging to such activated services. Furthermore it should be not allowed to chroot, while surfuser is not a member of any user and not any group except surfgroup. To login as root, a root-login should generally not be allowed by configuration (MCC, security settings), and a user must be a member of the group wheel, in order to login as root, what can reduce the time for different works without riscing to much, if LINFW3 protecting with UID-owner surfuser and GID-owner gets activated. Using MCC security an accessless root access can be configured for the command su. In the device-configuration-file /etc/fstab It is also possible, to set the option &quot;noexec&quot; each partition, especially for the partition including the files owned by the user &quot;surfuser&quot;. Then the configuration of file-release within LAN and access-rights for directories and files can even prevent the reading of directories and files with sensible data (&quot;chown non-surfuser; chmod 700&quot;): the concept of UNIX-(file)systems! Its a remaining matter of communication-protocols themselves, that can be used (build-up) by the password-protected surfuser through belonging port-releases only. To be more careful than careful, move all sensilbe data to a one more encryted partition or an encrypted extern media, that should be plugged in or read again only the time, suspect services are not activated (when belonging connections are not build-up). This fact is described more in detail  below in our section for LINFW3. You can even resign from many updates. But nevertheless, to go sure (over sure) as promised, we are going to describe, how mdv2010 can be kept uptodate almost by the until 2026 actualized Scientificlinux alias CentOS 6 resp 7.  
<BR><BR>
<font color="green" style="font-size:12pt"><B>Good luck: Unix/Linux always consists in main of the same software</B></font>, kernel, grub/lilo, dracut, glibc, X11-Server, window- and desktop-manager like Gnome and KDE with konqueror and kpim out of kmail, knodes, clamav, firefox, OpenOffice and koffice, gimp and so on. In comparison with non OpenSource, this opensource is checked many times for it is read out well. Notice, that many new updates, patches and bugfixes listed in fr2.prmfind.net for mdv and GLSA Gentoo just rely on functionality extensions. Therefore, do not use them. They might not work!
<BR><BR>
<B>Everything of mdv2010 will run fine and stable on your SSD, except the KDE leading to sink plasmoid Daisy, belonging to the plasmoids like such for the wheather-forecast for example, exchanging data with extern sources. You can always deinstall and deactivate such insecure behaving plasmoids. Although the upgrade of glibc to rosa2014.1, mga3 or higher widens the possibilities, mdv2010 bewares its sensibilities in the case of the installation of wrong packages, that can lead to serious hard system-breakdowns and hangups. Think like the MCC-packet-manager. Beware previous installed packages, until mdv2010 runs stable (reinstallation: rpm -U --force and/or --nodeps).</B>
<BR><BR>
Have a look into the <font color="green"><B>changelog</B></font> of each packet. There you get to know about all modificiations by date and the name of the day of the week in descending order, the modification time, name resp. e-mail-adresse of each author (programmer), who has programmed the modification and a short description of the modification itself. It must be at last the publishing organisation, who has checked all this information out using tools like diff. Some updated resp. patched packages can be found out immediately by their high version release number (el6 and el7) like NetworkManager-xxxx-107 (el6), where 99 stands for the 99th release or in addition by the number after the point at the end of the version number (mdk, mdv, mga) like NetworkManager-xxxx-25.2, where &quot;2&quot; stands for the second patch of the version&#180;s release. If the version number differs in the first ciphers, the package almost contains serious hard changes. If the version number differs in end-ciphers only from the already installed one, it gets more likely, that you can use this package for replacement. Right before the version number resp. the end of the package name the short name for the belonging distribution, followed by the kind of processor is named resp. the &quot;noarch&quot; in the case of independency from the processor type. A third person not named in the changelog and list of the packager names would have as much difficulties with the manipulation of the packets as cracking and hacking the computer with the rpm-command and the files on the storage media.
<BR><BR>
Filesystem, you have several opportunities: reiserfsprogs (omv2015, omv2014) or reiserfs-utils (fc23, el7, el6), e2fsprogs (1.43.2) with lib64ext2fs (rosa2014.1) without uClibc (omv2014, omv2015), uclibc-lib64ext2fs (omv2014, omv2015)<BR>  
reiserfs-3.6.24-8.5 (OpenSuSE Factory) with libreiserfs, libreiserfs-progs and libreiserfscore0.<BR> 
<font color="red"><B>The harddrive (SSD) causes errors for some reiserfs-versions during the system boot and checks by reiserfsck.</B></font> Therefore our choice consists of reiserfsprogs (omv2015) and e2fprogs (rosa2014.1) together with lib64ext2fs (rosa2014.1)- causing no errors anymore.
<BR><BR>
<B>hdparm (omv2015, rosa2014.1, el7, el6) and sdparm (omv2015, rosa2014.1, el7, el6): adequate SSD-parameters within /etc/rc.local (hdparm -W1a0A0 /dev/sda) support our aim: all on SSD and <i>mouseclick-fast</i>! MCC, gparted and disk manager Palimpsest provides overview, some administration, benchmarks and partitioning.</B>
<BR><BR>
<B>Notice, that all package-dependencies have to be installed with one package. Otherwise this can cause a state similar to buffe-overrflows, where CPU and RAM seem to have lost their capacities quit working endless.</B>
<BR><BR>
Next point: specific microcode-update for the CPU. For the mainboard we introduce in data-sheed, ucode-intel (OpenSuSE) and ucode-intel-blob (OpenSuSE) should be installed to follow our aim of <i>mouseclick-fast</i> PC-working. 
<BR><BR>
All updates (since) mdv2007.0 and mdv2010 do regulary refer to, and this is the advantage of UNIX-Systems: buggish software (not much for mentioned mdv), all net-communication-programs like proxy (squid,...), MySQL, telephony, the browser (using ssl3.0 instead of tls as reported by three members of the Google-Team, that means all firefox up to an actual resp. TLS-using version 34 ( unpacking an easy by menu updateable, actual firefox into a directory like /usr/lib64/firefox and choosing &quot;Update Firefox&quot; out of the menu (same for Thunderbird into /usr/lib64/thunderbird), updating firefox in detail, see our section updating firefox. Such 
<A name="SCRIPTBLOCKER">
<BR><BR>
<B>How to block scripts and ads with an ad- resp. script-blocker like konqueror-adblock.so and adblockplus is much more simple than presented by their typical large resource-killing blocking-lists full of pregiven exceptions:</B><BR>
<B>At first all blocking-scripts like easylist have to be removed out of AdblockPlus resp. other adblocker. Many of them contain exceptions.  The special convenience for (more) exceptions has to be deactivated too by clicking upon the hook, so that the hook does not appear anymore.</B><BR>
Now, like firewall linfw3, the &quot;trusted&quot;-strategy, &quot;forbidden is, what is not (explicitly) allowed&quot; should be followed.<BR>
Therefore the only existant private ad- resp. scriptfilter should just include the following entries:<BR>
&#64;&#64;*.css*<BR>
||*.js/*<BR>
||*.com/*<BR>
||*.net/*<BR>
||*.de/*<BR>
||*.pl/*<BR>
*<BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">
<B>or just the one single char for a star:</B><BR>
<font style="font-size:42pt"><B>*</B></font><BR>
<B>for all, that could ever be blocked from a website!</B><BR>
That&#180;s all ! It is not a bad idea to allow all stylesheets (css) by adding the one more entry &#64;&#64;*.css* right at the top of the filter list. Very brave ones risk <B>webbugs (scripts with an image output)</B>  filtered out by other extensions and add &#64;&#64;*.jpg* , &#64;&#64;*.jpeg*, &#64;&#64;*.gif* and &#64;&#64;*.png* too, that can be allowed in ABP resp. ABL as exceptions each website loaded. Filter-lists from elsewhere like the up-to-date to keep EasyList with their many exceptions are not needed anymore! They just were nonsens, as no more entries are needed (eventually except some more top-sublevel-domains (country-codes) in addition to &quot;*.de/*&quot;.
<BR><BR>
So a single char for the star apriori &quot;*&quot;does already do its very best!
<BR><BR>
Our final solution: Our complete ABP- resp. ABL-filter-list, especially at the very beginning, just has got the includes:
<BR><BR>
ABP (Firefox &lt;= ESR 52.9.0):<BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><font color="green" style="font-size: 9pt">&#64;&#64;*.png*<BR>
&#64;&#64;*.css*<BR>
&#64;&#64;||*.gif*<BR>
&#64;&#64;||*.jpeg*<BR>
&#64;&#64;||*.jpg*<BR>
&#64;&#64;||*.svg*<BR>
<B>*</B><BR>
*.js*<BR>
*.pl*<BR>
*</font>
<BR><BR>
ABL (Pale Moon):<BR> 
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><font color="green" style="font-size: 9pt">&#64;&#64;*.png<BR>
&#64;&#64;*.css<BR>
&#64;&#64;*.gif<BR>
&#64;&#64;*.jpeg<BR>
&#64;&#64;*.jpg<BR>
&#64;&#64;*.svg<BR>
*.js<BR>
*.pl<BR>
*</font>
<BR><BR>
without any further entries and without any imported filter-lists (full of exceptions and superfluous rules) like EasyList.
<BR><BR>
Good luck: These few snake-speeded entries do not influence the surf-speed measurable much.
<BR><BR>
In order to make visible now, what should in your eyes be visible from a loaded website, <B>EXCEPTION</B> by exception should be added to the list almost using wildcards resp. regular expressions after the build-up of the side, until the hidden (blocked) parts get visible. At first, if the css-entry should be missing, think of all Stylesheets (css) to consider as exceptions, while especially most or all Javscript (.js) should still be blocked. To go sure, block *.js and *.pl beneath the general &quot;*&quot; from above in future (as already made in our list above). Enter exceptions for not shown images (if belonging exceptions from above should still be missing) by entries like https://.../*.jpg and https://.../*.png too.<BR>
After that, the webside should be loaded one more time (refresh) and JavaScript should be disabled again for the next certain time by &quot;javascript.enabled false&quot; passing &quot;about:config&quot;. If the filters of ABP resp. ABL are set as recommended above, beware for Firefox-ESR (and, if you want, also Pale Moon) &quot;javascript.enabled true&quot; as all javascript is already filtered out. Listed extensions will really work fine, if set to true. 
<BR><BR>
<B>Do the same with Firefox-Extension RequestPolicyBlockedContinued</B> just to be even more careful or to do it more additionally, as unknown Tracker already got blocked with their first appearance, until they get allowed by the user.
<BR><BR>
In the first configuration window set all three hooks, therewith new rules entered can be stored durable and not only temporary.
<BR><BR>
Next configuration window deals with the ruleset. Enter a new rule by electing &quot;block&quot; and entering a * (star) again into all fields for the new rule. Now the self-blockade of a webside (resp. server) has to be prevented by allowing the belonging rule just for the trusted server itself. If not, images and other objects might get blocked.
<BR><BR>
There are  pregiven rules within the ruleset of RequestPolicyBlockContinued located in a directory far sub /home/surfuser/.mozilla/firefox/default-or-standard-profile with the some json-typed files like allow_functionality.json, allow_sameorg.json and so on, that can also be overworked, if you want..  
<BR><BR>
The private mode can be deactivated by clicking upon settings in Firefox ESR, although this won&#180;t be the truth, that means he won&#180;t become really deactivated through using extension Private Tabs. Or take it the other way: activate the private mode and deactivate him by clicking upon the TAB to deactivate the private mode through Private TAB.<BR>
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Incognito-mode for the protection of the privacy during surfing</B>, PC-WELT.de, 03.11.2019<BR>
Windows-10-Browser Edge as much as Google Chrome and Firefox offer a mode leaving no tracks during the surfuing on the PC behind. Howto use this mode in a reliable way:<BR>
Whenever you change into the private surf-mode, all during the visit of websites stored information like cookies, history protocols, web-cache, images and videos are deleted resp. removed past the closing of the browser.<BR> This especially interests, if you are surfing with a foreign computer in the web, in order to avoid leaving any tracks behind you. But this is an advantage for your own PC too, as the deletion (removal) of your surf data at the end of each internet-session makes it more difficult for the owner resp. administrators of websites to create user profiles.<BR>
[...] Notice, that the private mode does not care for anonymity in the internet  Your internet provider (ISP), the administrator of the router of communities or the net administrator in the net of a company is still enabled to evaluate the sites visisted, the links clicked and data transferred.<BR>
https://www.pcwelt.de/a/inkognito-modus-privatsphaere-beim-surfen-schuetzen,3450334
<BR><BR>
Did we mention it, didn&#180;t you know? PHP- and Perl-scripts are interpreted always at first and serversided each website load, before the Javascript and HTML is interpreted client-sided (on the side of the surfer resp. user).
<BR><BR>.
In the hope,.that user.js from KaiRaven and other authors is copied into the standard-profile-directory, that linfw3 and firejail got installed and configured, /etc/hosts from far below of this website is located and the DNS (in the priority local followed by remote and pdnsd) configured well, the surfing with Firefox ESR can right begin! 
<BR><BR>
During the surfing, noscript and RequestBlockPolicyContinued have to be analyzed past the load of a website. It is your own, free choice to filter out or to pass listed scripts by. If a webseite requires cookies, they can be allowed by the CookieController. 
<BR><BR>
All, that has to be done now after the configuration of listed extensions too, is to start the browser and to click upon the first and only appearing TAB to make it private (working in private mode). 
<BR><BR>
Nevertheless what we have seen works on the base of &quot;trusted&quot; like linfw3 and openssl upon ssl-certificates and so on might do.<BR>
But AdblockPlus changed its layout in November 2017 making such configuration impossible. Try elder versions downloadable from fr2.rpmfind.net named <B>mozilla-adblockplus-2.9.1-27</B> (fc28, fc27, el7, el6), noscript: <B>mozilla-noscript</B> (-5.1.8.6, 5.1.8.5, 5.1.7-1, fc28, fc27, el7, el6) or seamonkey-noscript (el6, 5.1.9-3, recommended noscript for ff-ESR-52.9.0; contains the xpi-installation-file), http://ftp.pbone.net/mirror/archive.fedoraproject.org/fedora/linux/updates/25/armhfp/Packages/m/mozilla-noscript-5.1.7-1.fc25.noarch.rpm.
<BR><BR>
Noscript, rpm mozilla-noscript (fc29, el7, el6) can <B>enforce ssl-encryption (https)</B> of addressed websites, by entering in a great text-input-field of register HTTPS:
<BR><BR>
<font style="font-size:42pt"><B>*</B></font><BR> 
<BR><BR>
Write exceptions below each other in the field below. Firefox-extension https.everywhere, rpm mozilla-https-everywhere (fc, el6 or mozilla.org), is not needed anymore. 
<BR><BR>
The important Firefox-security-extension <B>RequestPolicyBlockedContinued</B>, rpm: mozilla-requestpolicy (-1.0-0.22.20171019git633302 fc29, el7, el6) might contain some pre-defined rules, but it also enables the adding of temporary as much as persistent new rules for user. They might be set generally under target and therefore not under start, using * for any port. You might want to set them for extern loaded fonts and google like *syndication*:*/*, *analytics*:*/*, *tagmanager*:*/*, *usercontent*.*:*, *google.*:*/* and other targets. Install this extension past ABP, but before noscript.
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Searchplugins</B> (for integrated in search engines) of Firefox /usr/lib64/firefox/browser/searchplugins can be removed except one. If you remove all, the context menu might not build up completely, for example copy and paste of text and links might not function anymore.<BR>
To go sure, remove the search-parameters within the remaining xml-searchplugin by a text-editor like nano.
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><font color="green" style="font-size:12pt"><B>Incognito-Mode: Protecting the privacy during the surfing</B></font>, PC-WELT.de, 06.04.2018<BR>
Windows-10-Browser Edge as well as Google Chrome and Firefox provide a mode keeping from tracking the PC.<BR>
[...] Firefox-users have to click upon the icon with the three horizontal bars right up in the menu to choose &quot;private windows&quot; or by pressing the keys STRG-P. <BR>
https://www.pcwelt.de/a/inkognito-modus-privatsphaere-beim-surfen-schuetzen,3450334
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0">Certifcates: Following permissions can be set to the values &quot;Always-ask&quot;, &quot;allow&quot; and &quot;block&quot; for each website by clicking on the symbol for the lock and register &quot;Permissions&quot;:<BR> 
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Remove (quit) all URL resp. URI the browser (including Pale Moon and Tor-Browser) has stored and lists through about:config</B><BR>
about:config -&gt; type into the address-search-line http -&gt; remove listed URL by clicking upon them and exchanging them through a blank (empty string).
<BR><BR>
Access Your Location<BR>
Intall Add-ons<BR>
Load Images<BR>
Maintain Offline Storage<BR>
Open Pop-up Window<BR>
Receive Notifications<BR>
Set Cookies<BR>
Share the Screen<BR>
Use the Camera<BR>
Use the Microphone
<BR><BR>
<img src="images/haekchen.png" ALT="OK" align="left" border="0"><B>Finally one should have read the report for the configuration of firefox-ESR by &quot;about:config&quot;: Firefox-Tuning zur Absicherung und Anonymisierung, https://wiki.kairaven.de/open/app/firefox, to understand what we do next.</B> (!!!)<BR>
There the configuration of almost overwritten values out of about:config should happen through mozilla.cfg. But this does not work. The include of this file has to be taken over (copied) from mozilla.cfg (installation directory) into defaults/local-settings.js. Now the &quot;forgotten&quot; values are almost set in Firefox ESR. <BR>
All entries are listed in http://kb.mozillazine.org/About:config_Entries ´
<BR>
<BR><font style="font-size: 9pt" color="green">/******************************************************************************
<BR>   * /home/surfuser/.mozilla/firefox/your_default_profile_directory00-or-so/user.js *
<BR>   * https://github.com/pyllyukko/user.js *
<BR>   ******************************************************************************/
<BR>   
<BR>// http://kb.mozillazine.org/User.js_file
<BR>//
<BR>// always enable mouseclick on links and formular text inputs:
<BR>// (user_pref(&quot;network.protocol_handler.expose_all&quot;, true)
<BR>//
<BR>//====================================================
<BR>// section <B>TOR-BROWSER</B> (ff-ESR) only
<BR>// ===================================================
<BR>// The meek-http-helper extension uses dump to write its listening port number
<BR>/// to stdout.
<BR>
<BR> // user.js for Pale Moon and Firefox-ESR-52.9
<BR>
<BR>// pale moon- and therefore also ff- extension SecretAgent for setting and changing user agents
<BR>
<BR>user_pref(&quot;extensions.SecretAgent.StealthMode&quot;, true); 
<BR>
<BR> // enable javascript, so that ABP (fc29) of ff will work, but disable it for Pale Moon because of ABL. ABL works even, if disabled.
<BR>
<BR>user_pref(&quot;javascript.enabled&quot;, true);
<BR><BR>
user_pref(&quot;browser.addon-watch.ignore&quot;, &quot;&quot;);
<BR><BR>
// block images: 3: from third parties <BR>
user_pref(&quot;permissions.default.image&quot;, 3);<BR>
// Next one might block webbugs etc.:<BR>
user_pref(&quot;security.xcto_nosniff_block_images&quot;, true);
<BR> //
<BR> // disable ftp
user_pref(&quot;network.protocol-handler.external.ftp&quot; true);
<BR>//
<BR> //Proxy: always use anonymizing Tor each ff-start 
<BR>
<BR>user_pref(&quot;network.http.proxy.pipelining&quot;, false);
<BR>// Settings won&#180; get stored, when using: user_pref(&quot;network.proxy.no_proxies_on&quot;, &quot;&quot;);
<BR>user_pref(&quot;network.proxy.socks&quot;, &quot;127.0.0.1&quot;);
<BR>user_pref(&quot;network.proxy.socks_port&quot;, 9050);
<BR>user_pref(&quot;network.proxy.type&quot;, 1);
<BR>
<BR> // DNS for Tor: remote DNS lookup at first or local DNS lookup at first. We care especially for the case &quot;false&quot; in future in the excurs-section for DNS-Server 
<BR>
<BR>user_pref(&quot;network.proxy.socks_remote_dns&quot;, false);
<BR>
<BR> // Erh&ouml;hung der Privatsph&auml;re gegen&uuml;ber Suchmaschinen: Wie bereits dargestellt &uuml;bermittelt Firefox standardm&auml;&szlig;ig jeden einzelnen Buchstaben bzw. unsere Eingabe an eine 
<BR> // Suchmaschine, ohne dass wir die Suchabfrage &uuml;berhaupt abgesendet haben. Diese &quot;Komfortfunktion&quot; wird &uuml;ber die user.js deaktiviert. Wer die Funktion beibehalten m&ouml;chte, der kann optional <BR> // folgende drei Zeilen einfach entfernen:
<BR> // ## Disable location bar LIVE search suggestions
<BR>user_pref(&quot;browser.search.suggest.enabled&quot;, false);
<BR>user_pref(&quot;browser.urlbar.suggest.searches&quot;, false);
<BR>
<BR>
<BR> // some more settings
<BR> //
<BR> // Strict user.js: Die strenge user.js blockiert restriktiv vieles, was f&uuml;r Tracking sowie Sicherheit relevant sein k&ouml;nnte. Neben Trackinschutz sollen auch M&ouml;glichkeiten f&uuml;r Angriffe auf den Browser minimiert werden. 
<BR> // Diese Einstellungen sind f&uuml;r Risiko­gruppen geeignet, die f&uuml;r h&ouml;here Sicherheit einige Einschr&auml;nkungen in Kauf nehmen.
<BR> // Javascript Just-in-Time-Compiler sind aus Sicherheitsgr&uuml;nden deaktiviert, was die ausf&uuml;hrung von Javascript auf einige Webseiten verlangsamt.
<BR> // Anzeige von PDF Dokumenten im Browser ist deaktiviert.
<BR> // SVG, Flash, WebGL und WebGL2 sind komplett deaktiviert.
<BR> //  Auto-Play und Hardware Video Decoding sind deaktiviert.
<BR> // Closed Source Video Codecs werden nicht verwendet.
<BR> // Favicons werden nicht geladen und nicht gespeichert.
<BR> // Es werden keine Login Credentials gespeichert.
<BR> // Unverschl&uuml;sseltes HTTP und FTP sind abgeschaltet, nur HTTPS m&ouml;glich.
<BR> // Push Services sind deaktiviert.
<BR> //  Der Download von externen Schriftarten ist auch f&uuml;r Symbole deaktiviert. Um die resultierenden Einschr&auml;nkungen etwas abzumildern, kann man h&auml;ufig genutzte Webicon Fonts wie den Awesome Webicon Font lokal 
<BR> // installieren. Linux Distributionen enthalten passende Pakete:
<BR> // Ubuntu: &gt; sudo apt install fonts-font-awesome
<BR> // Fedora: &gt; sudo dnf install fontawesome-fonts fontawesome-fonts-web
<BR> // https://privacy-handbuch.de/handbuch_21u.htm
<BR>
<BR>user_pref(&quot;noscript.preset&quot;, &quot;medium&quot;);
<BR>user_pref(&quot;media.video-queue.default-size&quot;, 0);
<BR>user_pref(&quot;status4evar.advanced.status.detectVideo&quot;, false);
<BR>user_pref(&quot;devtools.cache.disabled&quot;, false); // must be set to false, true might cause screen-flickering!
<BR>user_pref(&quot;devtools.browserconsole.filter.secerror&quot;, false);
<BR>user_pref(&quot;devtools.command-button-frames.enabled&quot;, false);
<BR>user_pref(&quot;devtools.command-button-responsive.enabled&quot;, false);
<BR>user_pref(&quot;devtools.command-buttion-splitconsole.enabled&quot;, false);
<BR>user_pref(&quot;media.gmp-manager.certs.2.commonName&quot;, &quot;&quot;);
<BR>user_pref(&quot;media.gmp-manager.certs.1.commonName&quot;, &quot;&quot;);
<BR>user_pref(&quot;gecko.handlerService.schemes.mailto.0.name&quot;, &quot;&quot;);
<BR>user_pref(&quot;gecko.handlerService.schemes.mailto.1.name&quot;, &quot;&quot;);
<BR>user_pref(&quot;general.useragent.compatMode.gecko&quot;, false);
<BR>user_pref(&quot;general.useragent.compatMode&quot;, 0);
<BR>user_pref(&quot;general.useragent.override.aol.com&quot;, &quot;&quot;);
<BR>user_pref(&quot;general.useragent.override.netflximg.net&quot;, &quot;&quot;);
<BR>user_pref(&quot;general.useragent.override.players.brightcove.net&quot;, &quot;&quot;);
<BR>user_pref(&quot;general.useragent.override.deviantart.net&quot;, &quot;&quot;);
<BR>user_pref(&quot;general.useragent.override.bing.com&quot;, &quot;&quot;);
<BR>user_pref(&quot;general.useragent.override.calendar.yahoo.com&quot;, &quot;&quot;);
<BR>user_pref(&quot;general.useragent.override.chase.com&quot;, &quot;&quot;);
<BR>user_pref(&quot;general.useragent.override.citi.com&quot;, &quot;&quot;);
<BR>user_pref(&quot;general.useragent.override.dailymotion.com&quot;, &quot;&quot;);
<BR>user_pref(&quot;general.useragent.override.deviantart.com&quot;, &quot;&quot;);
<BR>user_pref(&quot;general.useragent.override.dropbox.com&quot;, &quot;&quot;);
<BR>user_pref(&quot;general.useragent.override.firefox.com&quot;, &quot;&quot;);
<BR>user_pref(&quot;general.useragent.override.gaming.youtube.com&quot;, &quot;&quot;  );
<BR>user_pref(&quot;general.useragent.override.github.com&quot;, &quot;&quot;);
<BR>user_pref(&quot;general.useragent.override.google.com&quot;, &quot;&quot;);
<BR>user_pref(&quot;general.useragent.override.googlevideos.com&quot;, &quot;&quot;);
<BR>user_pref(&quot;general.useragent.override.gstatic.com&quot;, &quot;&quot;);
<BR>user_pref(&quot;general.useragent.override.humblebundle.com&quot;, &quot;&quot;);
<BR>user_pref(&quot;general.useragent.override.mozilla.com&quot;, &quot;&quot;);
<BR>user_pref(&quot;general.useragent.override.msn.com&quot;, &quot;&quot;);
<BR>user_pref(&quot;general.useragent.override.netflix.com&quot;, &quot;&quot;);
<BR>user_pref(&quot;general.useragent.override.outlook.com&quot;, &quot;&quot;);
<BR>user_pref(&quot;general.useragent.override.patientaccess.com&quot;, &quot;&quot;);
<BR>user_pref(&quot;general.useragent.override.soundcloud.com&quot;, &quot;&quot;);
<BR>user_pref(&quot;general.useragent.override.web.whatsapp.com&quot;, &quot;&quot;);
<BR>user_pref(&quot;general.useragent.override.www.amazon.com&quot;, &quot;&quot;);
<BR>user_pref(&quot;general.useragent.override.yahoo.com&quot;, &quot;&quot;);
<BR>user_pref(&quot;general.useragent.override.yuku.com&quot;, &quot;&quot;);
<BR>user_pref(&quot;general.useragent.override.addons.mozilla.org&quot;, &quot;&quot;);
<BR>user_pref(&quot;general.useragent.override.altibox.dk&quot;, &quot;&quot;);
<BR>user_pref(&quot;general.useragent.override.altibox.no&quot;, &quot;&quot;);
<BR>user_pref(&quot;general.useragent.override.mozilla.org&quot;, &quot;&quot;);
<BR>user_pref(&quot;general.useragent.override.netflximg.com&quot;, &quot;&quot;);
<BR>user_pref(&quot;general.useragent.override.youtube.com&quot;, &quot;&quot;);
<BR>user_pref(&quot;general.useragent.override.web.de&quot;, &quot;&quot;);
<BR>user_pref(&quot;general.useragent.override.privat24.ua&quot;, &quot;&quot;);
<BR>user_pref(&quot;general.useragent.override.players.brightcove&quot;, &quot;&quot;);
<BR>user_pref(&quot;general.useragent.override.hitbox.tv&quot;, &quot;&quot;);
<BR>user_pref(&quot;general.useragent.override.live.com&quot;, &quot;&quot;);
<BR>user_pref(&quot;security.ssl.disable_session_identifiers&quot;, false);
<BR>user_pref(&quot;devtools.remote.wifi.scan&quot;, false);
<BR>user_pref(&quot;devtools.gcli.imgurClientID&quot;, &quot;&quot;);
<BR>user_pref(&quot;devtools.remote.wifi.visible&quot;, false);
<BR>user_pref(&quot;browser.dom.window.dump.enabled&quot;, true);
<BR>//
<BR>// Enable (here disable) SPDY and HTTP/2 as they are in Firefox 38, for a matching ALPN extension.
<BR>// https://trac.torproject.org/projects/tor/ticket/15512
<BR>user_pref(&quot;network.http.spdy.enabled&quot;, false);
<BR>user_pref(&quot;network.http.spdy.enabled.http2&quot;, false);
<BR>user_pref(&quot;network.http.spdy.enabled.http2draft&quot;, false);
<BR>user_pref(&quot;network.http.spdy.enabled.v3-1&quot;, false);
<BR>user_pref(&quot;network.http.spdy.coalesce-hostnames&quot;, false);
<BR> //
<BR> // https://support.mozilla.org/en-US/questions/1043508
<BR> user_pref(&quot;dom.disable_beforeunload&quot;, true);
<BR>
<BR>// Disable safe mode. In case of a crash, we Don&#180;t want to prompt for a
<BR>// safe-mode browser that has extensions disabled.
<BR>// https://support.mozilla.org/en-US/questions/951221#answer-410562
<BR>user_pref(&quot;toolkit.startup.max_resumed_crashes&quot;, -1);
<BR>
<BR>//==============================================
<BR>// <B>end section TOR-BROWSER</B>
<BR>//==============================================
<BR>// Set a failsafe blackhole proxy of 127.0.0.1:9, to prevent network interaction
<BR>// in case the user manages to open this profile with a normal browser UI (i.e.,
<BR>// not headless with the meek-http-helper extension running). Port 9 is
<BR>// &quot;discard&quot;, so it should work as a blackhole whether the port is open or
<BR>// closed. network.proxy.type=1 means &quot;Manual proxy configuration&quot;.
<BR>// http://kb.mozillazine.org/Network.proxy.type
<BR>user_pref(&quot;network.proxy.type&quot;, 1);
<BR>user_pref(&quot;network.proxy.socks&quot;, &quot;127.0.0.1&quot;);
<BR>user_pref(&quot;network.proxy.socks_port&quot;, 9);
<BR>// Make sure DNS is also blackholed. network.proxy.socks_remote_dns is
<BR>// overridden by meek-http-helper at startup.
<BR>user_pref(&quot;canvas.capturestream.enabled&quot;, false);
<BR>user_pref(&quot;security.csp.experimentalEnabled&quot;, true);
<BR>user_pref(&quot;privacy.firstparty.isolate&quot;, true);
<BR>user_pref(&quot;privacy.popups.disable_from_plugins&quot;, 3);
<BR>user_pref(&quot;privacy.permissionPrompts.showCloseButton&quot;, true);    
<BR>user_pref(&quot;privacy.popups.disable_from_plugins&quot;, 3);
<BR>user_pref(&quot;privacy.resistFingerprinting&quot;, true); 
<BR>user_pref(&quot;security.data_uri.block_toplevel_data_uri_navigations&quot;, true);
<BR>user_pref(&quot;security.family_safety.mode&quot;, 0);
<BR>user_pref(&quot;social.directories&quot;, &quot;&quot;);
<BR>user_pref(&quot;svg.disabled&quot;, true);
<BR>user_pref(&quot;extensions.enabledAddons&quot;, &quot;meek-http-helper&#64;bamsoftware.com:1.0&quot;);
<BR>user_pref(&quot;network.protocol-handler.expose.ftp&quot;, false);
<BR>user_pref(&quot;network.protocol-handler.external.ftp&quot;, false); 
<BR>user_pref(&quot;image. animation_mode&quot; &quot;normal&quot;); 
<BR>user_pref(&quot;update. interval&quot;, 0);
<BR>Determines when images should be loaded.
<BR>1 (default): Load all images
<BR>2: Do not load any images
<BR>3: Load images from same (originating) server only
<BR>Note: This preference was previously known as 
<BR>user_pref(&quot;permissions.default.image&quot;, 1);
<BR>   // 
<BR>   // PC-Welt.de, https://www.pcwelt.de/ratgeber/Geheime-Tricks-der-Insider-Browser-Geheimnisse-8809751.html
<BR>   //
<BR>   user_pref(&quot;Media.navigator.enabled&quot;, false);
<BR>   user_pref(&quot;Media.peerconnection.enabled&quot;, false);
<BR>   user_pref(&quot;Browser.taskbar.previews.enable&quot;, false);
<BR>   user_pref(&quot;Privacy.resistFingerprinting&quot;, true);
<BR>   // 
<BR>   // 
<BR>   // 
<BR>//
<BR>// Pale Moon Extension: Block Content Download
<BR>//
<BR>user_pref(&quot;extensions.mdsy.block.script&quot;, false)
<BR>user_pref(&quot;extensions.mdsy.block.xhr&quot;, true)
<BR>user_pref(&quot;extensions.mdsy.block.image&quot;, false)
<BR>user_pref(&quot;extensions.mdsy.block.media&quot;, true)
<BR>user_pref(&quot;extensions.mdsy.block.object&quot;, true)
<BR>user_pref(&quot;extensions.mdsy.block.font&quot;, true)
<BR>user_pref(&quot;extensions.mdsy.block.style&quot;, false)
<BR>   /******************************************************************************
<BR>   * SECTION: HTML5 / APIs / DOM *
<BR>   ******************************************************************************/
<BR>   // recommended for Firefox-ESR 
<BR>   // listed settings contribute to anonymizing and increasing speed of firefox up to 100%
<BR>   // copy to /home/user/.mozilla/firefox/*your_profile_default_directory/
<BR>   // PREF: Disable Service Workers
<BR>   // https://developer.mozilla.org/en-US/docs/Web/API/Worker
<BR>   // https://developer.mozilla.org/en-US/docs/Web/API/ServiceWorker_API
<BR>   // https://wiki.mozilla.org/Firefox/Push_Notifications#Service_Workers
<BR>   // NOTICE: Disabling ServiceWorkers breaks functionality on some sites (Google Street View...)
<BR>   // Unknown security implications
<BR>   // CVE-2016-5259, CVE-2016-2812, CVE-2016-1949, CVE-2016-5287 (fixed)
<BR>   user_pref(&quot;dom.serviceWorkers.enabled&quot;, false);
<BR>   
<BR>   // PREF: Disable Web Workers
<BR>   // https://developer.mozilla.org/en-US/docs/Web/API/Web_Workers_API/Using_web_workers
<BR>   // https://www.w3schools.com/html/html5_webworkers.asp
<BR>   // NOTICE: Disabling Web Workers breaks &quot;Download as ZIP&quot; functionality on https://mega.nz/, WhatsApp Web and probably others
<BR>   user_pref(&quot;dom.workers.enabled&quot;, false);
<BR>   
<BR>   user_pref(&quot;browser.tabs.closeWindowWithLastTab&quot;, false);
<BR>
<BR>   // PREF: Disable web notifications
<BR>   // https://support.mozilla.org/t5/Firefox/I-can-t-find-Firefox-menu-I-m-trying-to-opt-out-of-Web-Push-and/m-p/1317495#M1006501
<BR>   user_pref(&quot;dom.webnotifications.enabled&quot;, false);
<BR>   
<BR>   // PREF: Disable DOM timing API
<BR>   // https://wiki.mozilla.org/Security/Reviews/Firefox/NavigationTimingAPI
<BR>   // https://www.w3.org/TR/navigation-timing/#privacy
<BR>   user_pref(&quot;dom.enable_performance&quot;, false);
<BR>   
<BR>   // PREF: Make sure the User Timing API does not provide a new high resolution timestamp
<BR>   // https://trac.torproject.org/projects/tor/ticket/16336
<BR>   // https://www.w3.org/TR/2013/REC-user-timing-20131212/#privacy-security
<BR>   user_pref(&quot;dom.enable_user_timing&quot;, false);
<BR>   
<BR>   // PREF: Disable Web Audio API
<BR>   // https://bugzilla.mozilla.org/show_bug.cgi?id=1288359
<BR>   user_pref(&quot;dom.webaudio.enabled&quot;, false);
<BR>   
<BR>   // PREF: Disable Location-Aware Browsing (geolocation)
<BR>   // https://www.mozilla.org/en-US/firefox/geolocation/
<BR>   user_pref(&quot;geo.enabled&quot;, false);
<BR>   
<BR>   // PREF: When geolocation is enabled, use Mozilla geolocation service instead of Google
<BR>   // https://bugzilla.mozilla.org/show_bug.cgi?id=689252
<BR>   user_pref(&quot;geo.wifi.uri&quot;, &quot;https://location.services.mozilla.com/v1/geolocate?key=%MOZILLA_API_KEY%&quot;);
<BR>   
<BR>   // PREF: When geolocation is enabled, don&#180;t log geolocation requests to the console
<BR>   user_pref(&quot;geo.wifi.logging.enabled&quot;, false);
<BR>   
<BR>   // PREF: Disable raw TCP socket support (mozTCPSocket)
<BR>   // https://trac.torproject.org/projects/tor/ticket/18863
<BR>   // https://www.mozilla.org/en-US/security/advisories/mfsa2015-97/
<BR>   // https://developer.mozilla.org/docs/Mozilla/B2G_OS/API/TCPSocket
<BR>   user_pref(&quot;dom.mozTCPSocket.enabled&quot;, false);
<BR>   
<BR>   // PREF: Disable DOM storage (disabled)
<BR>   // http://kb.mozillazine.org/Dom.storage.enabled
<BR>   // https://html.spec.whatwg.org/multipage/webstorage.html
<BR>   // NOTICE-DISABLED: Disabling DOM storage is known to cause&#180;TypeError: localStorage is null&#180; errors
<BR>   user_pref(&quot;dom.storage.enabled&quot;, false);
<BR>   
<BR>   // PREF: Disable leaking network/browser connection information via Javascript
<BR>   // Network Information API provides general information about the system&#180;s connection type (WiFi, cellular, etc.)
<BR>   // https://developer.mozilla.org/en-US/docs/Web/API/Network_Information_API
<BR>   // https://wicg.github.io/netinfo/#privacy-considerations
<BR>   // https://bugzilla.mozilla.org/show_bug.cgi?id=960426
<BR>   user_pref(&quot;dom.netinfo.enabled&quot;, false);
<BR>   
<BR>   // PREF: Disable network API (Firefox&lt; 32)
<BR>   // https://developer.mozilla.org/en-US/docs/Web/API/Connection/onchange
<BR>   // https://www.torproject.org/projects/torbrowser/design/#fingerprinting-defenses
<BR>   user_pref(&quot;dom.network.enabled&quot;, false);
<BR>   //
<BR>   user_pref(&quot;network.dns.disableIPv6&quot;, true);
<BR>   //
<BR>   // PREF: Disable WebRTC entirely to prevent leaking internal IP addresses (Firefox&lt; 42)
<BR>   // NOTICE: Disabling WebRTC breaks peer-to-peer file sharing tools (reep.io ...)
<BR>   user_pref(&quot;media.peerconnection.enabled&quot;, false);
<BR>   
<BR>   // PREF: Don&#180;t reveal your internal IP when WebRTC is enabled (Firefox&gt;= 42)
<BR>   // https://wiki.mozilla.org/Media/WebRTC/Privacy
<BR>   // https://github.com/beefproject/beef/wiki/Module%3A-Get-Internal-IP-WebRTC
<BR>   user_pref(&quot;media.peerconnection.ice.default_address_only&quot;, true); // Firefox 42-51
<BR>   user_pref(&quot;media.peerconnection.ice.no_host&quot;, true); // Firefox&gt;= 52
<BR>   
<BR>   // PREF: Disable WebRTC getUserMedia, screen sharing, audio capture, video capture
<BR>   // https://wiki.mozilla.org/Media/getUserMedia
<BR>   // https://blog.mozilla.org/futurereleases/2013/01/12/capture-local-camera-and-microphone-streams-with-getusermedia-now-enabled-in-firefox/
<BR>   // https://developer.mozilla.org/en-US/docs/Web/API/Navigator
<BR>   user_pref(&quot;media.navigator.enabled&quot;, false);
<BR>   user_pref(&quot;media.navigator.video.enabled&quot;, false);
<BR>   user_pref(&quot;media.getusermedia.screensharing.enabled&quot;, false);
<BR>   user_pref(&quot;media.getusermedia.audiocapture.enabled&quot;, false);
<BR>   
<BR>   // PREF: Disable battery API (Firefox&lt; 52)
<BR>   // https://developer.mozilla.org/en-US/docs/Web/API/BatteryManager
<BR>   // https://bugzilla.mozilla.org/show_bug.cgi?id=1313580
<BR>   user_pref(&quot;dom.battery.enabled&quot;, false);
<BR>   
<BR>   // PREF: Disable telephony API
<BR>   // https://wiki.mozilla.org/WebAPI/Security/WebTelephony
<BR>   user_pref(&quot;dom.telephony.enabled&quot;, false);
<BR>   
<BR>   // PREF: Disable &quot;beacon&quot; asynchronous HTTP transfers (used for analytics)
<BR>   // https://developer.mozilla.org/en-US/docs/Web/API/navigator.sendBeacon
<BR>   user_pref(&quot;beacon.enabled&quot;, false);
<BR>   
<BR>   // PREF: Disable clipboard event detection (onCut/onCopy/onPaste) via Javascript
<BR>   // NOTICE: Disabling clipboard events breaks Ctrl+C/X/V copy/cut/paste functionaility in JS-based web applications (Google Docs...)
<BR>   // https://developer.mozilla.org/en-US/docs/Mozilla/Preferences/Preference_reference/dom.event.clipboardevents.enabled
<BR>   user_pref(&quot;dom.event.clipboardevents.enabled&quot;, false);
<BR>   
<BR>   // PREF: Disable &quot;copy to clipboard&quot; functionality via Javascript (Firefox&gt;= 41)
<BR>   // NOTICE: Disabling clipboard operations will break legitimate JS-based &quot;copy to clipboard&quot; functionality
<BR>   // https://hg.mozilla.org/mozilla-central/rev/2f9f8ea4b9c3
<BR>   user_pref(&quot;dom.allow_cut_copy&quot;, false);
<BR>   
<BR>   // PREF: Disable speech recognition
<BR>   // https://dvcs.w3.org/hg/speech-api/raw-file/tip/speechapi.html
<BR>   // https://developer.mozilla.org/en-US/docs/Web/API/SpeechRecognition
<BR>   // https://wiki.mozilla.org/HTML5_Speech_API
<BR>   user_pref(&quot;media.webspeech.recognition.enable&quot;, false);
<BR>   
<BR>   // PREF: Disable speech synthesis
<BR>   // https://developer.mozilla.org/en-US/docs/Web/API/SpeechSynthesis
<BR>   user_pref(&quot;media.webspeech.synth.enabled&quot;, false);
<BR>   
<BR>   // PREF: Disable sensor API
<BR>   // https://wiki.mozilla.org/Sensor_API
<BR>   user_pref(&quot;device.sensors.enabled&quot;, false);
<BR>   
<BR>   // PREF: Disable pinging URIs specified in HTML&lt; ping= attributes
<BR>   // http://kb.mozillazine.org/Browser.send_pings
<BR>   user_pref(&quot;browser.send_pings&quot;, false);
<BR>   
<BR>   // PREF: When browser pings are enabled, only allow pinging the same host as the origin page
<BR>   // http://kb.mozillazine.org/Browser.send_pings.require_same_host
<BR>   user_pref(&quot;browser.send_pings.require_same_host&quot;, true);
<BR>   
<BR>   // PREF: Disable IndexedDB (disabled)
<BR>   // https://developer.mozilla.org/en-US/docs/IndexedDB
<BR>   // https://en.wikipedia.org/wiki/Indexed_Database_API
<BR>   // https://wiki.mozilla.org/Security/Reviews/Firefox4/IndexedDB_Security_Review
<BR>   // http://forums.mozillazine.org/viewtopic.php?p=13842047
<BR>   // https://github.com/pyllyukko/user.js/issues/8
<BR>   // NOTICE-DISABLED: IndexedDB could be used for tracking purposes, but is required for some add-ons to work (notably uBlock), so is left enabled
<BR>   user_pref(&quot;dom.indexedDB.enabled&quot;, false);
<BR>   
<BR>   // TODO: &quot;Access Your Location&quot; &quot;Maintain Offline Storage&quot; &quot;Show Notifications&quot;
<BR>   
<BR>   // PREF: Disable gamepad API to prevent USB device enumeration
<BR>   // https://www.w3.org/TR/gamepad/
<BR>   // https://trac.torproject.org/projects/tor/ticket/13023
<BR>   user_pref(&quot;dom.gamepad.enabled&quot;, false);
<BR>   
<BR>   // PREF: Disable virtual reality devices APIs
<BR>   // https://developer.mozilla.org/en-US/Firefox/Releases/36#Interfaces.2FAPIs.2FDOM
<BR>   // https://developer.mozilla.org/en-US/docs/Web/API/WebVR_API
<BR>   user_pref(&quot;dom.vr.enabled&quot;, false);
<BR>   
<BR>   // PREF: Disable vibrator API
<BR>   user_pref(&quot;dom.vibrator.enabled&quot;, false);
<BR>   
<BR>   // PREF: Disable resource timing API
<BR>   // https://www.w3.org/TR/resource-timing/#privacy-security
<BR>   user_pref(&quot;dom.enable_resource_timing&quot;, false);
<BR>   
<BR>   // PREF: Disable Archive API (Firefox&lt; 54)
<BR>   // https://wiki.mozilla.org/WebAPI/ArchiveAPI
<BR>   // https://bugzilla.mozilla.org/show_bug.cgi?id=1342361
<BR>   user_pref(&quot;dom.archivereader.enabled&quot;, false);
<BR>   
<BR>   // PREF: Disable webGL
<BR>   // https://en.wikipedia.org/wiki/WebGL
<BR>   // https://www.contextis.com/resources/blog/webgl-new-dimension-browser-exploitation/
<BR>   user_pref(&quot;webgl.disabled&quot;, true);
<BR>   // PREF: When webGL is enabled, use the minimum capability mode
<BR>   user_pref(&quot;webgl.min_capability_mode&quot;, true);
<BR>   // PREF: When webGL is enabled, disable webGL extensions
<BR>   // https://developer.mozilla.org/en-US/docs/Web/API/WebGL_API#WebGL_debugging_and_testing
<BR>   user_pref(&quot;webgl.disable-extensions&quot;, true);
<BR>   // PREF: When webGL is enabled, force enabling it even when layer acceleration is not supported
<BR>   // https://trac.torproject.org/projects/tor/ticket/18603
<BR>   user_pref(&quot;webgl.disable-fail-if-major-performance-caveat&quot;, true);
<BR>   // PREF: When webGL is enabled, do not expose information about the graphics driver
<BR>   // https://bugzilla.mozilla.org/show_bug.cgi?id=1171228
<BR>   // https://developer.mozilla.org/en-US/docs/Web/API/WEBGL_debug_renderer_info
<BR>   user_pref(&quot;webgl.enable-debug-renderer-info&quot;, false);
<BR>   // somewhat related...
<BR>   user_pref(&quot;pdfjs.enableWebGL&quot;, false);
<BR>   
<BR>   // PREF: Spoof dual-core CPU
<BR>   // https://trac.torproject.org/projects/tor/ticket/21675
<BR>   // https://bugzilla.mozilla.org/show_bug.cgi?id=1360039
<BR>   user_pref(&quot;dom.maxHardwareConcurrency&quot;, 2);
<BR>   
<BR>   /******************************************************************************
<BR>   * SECTION: Misc *
<BR>   ******************************************************************************/
<BR>   
<BR>   // PREF: Disable face detection
<BR>   user_pref(&quot;camera.control.face_detection.enabled&quot;, false);
<BR>   
<BR>   // ALWAYS SET A SEARCH ENGINE, OTHERWISE CONTEXT MENU BRAKES! (!!!)
<BR>   //
<BR>   // PREF: Set the default search engine to DuckDuckGo (disabled)
<BR>   // https://support.mozilla.org/en-US/questions/948134
<BR>   user_pref(&quot;browser.search.defaultenginename&quot;, &quot;Wikipedia (en)&quot;);
<BR>   user_pref(&quot;browser.search.order.1&quot;, &quot;&quot;);
<BR>   user_pref(&quot;keyword.URL&quot;, &quot;&quot;);
<BR>   
<BR>   // PREF: Disable GeoIP lookup on your address to set default search engine region
<BR>   // https://trac.torproject.org/projects/tor/ticket/16254
<BR>   // https://support.mozilla.org/en-US/kb/how-stop-firefox-making-automatic-connections#w_geolocation-for-default-search-engine
<BR>   user_pref(&quot;browser.search.countryCode&quot;, &quot;US&quot;);
<BR>   user_pref(&quot;browser.search.region&quot;, &quot;US&quot;);
<BR>   user_pref(&quot;browser.search.geoip.url&quot;, &quot;&quot;);
<BR>   
<BR>   // PREF: Set Accept-Language HTTP header to en-US regardless of Firefox localization
<BR>   // https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Accept-Language
<BR>   user_pref(&quot;intl.accept_languages&quot;, &quot;en-US&quot;);
<BR>   user_pref(&quot;intl.charset.fallback.override&quot;, &quot;UTF-8&quot;);
<BR>   
<BR>   // PREF: Don&#180;t use OS values to determine locale, force using Firefox locale setting
<BR>   // http://kb.mozillazine.org/Intl.locale.matchOS
<BR>   user_pref(&quot;intl.locale.matchOS&quot;, false);
<BR>   
<BR>   // PREF: Don&#180;t use Mozilla-provided location-specific search engines
<BR>   user_pref(&quot;browser.search.geoSpecificDefaults&quot;, false);
<BR>   
<BR>   // PREF: Do not automatically send selection to clipboard on some Linux platforms
<BR>   // http://kb.mozillazine.org/Clipboard.autocopy
<BR>   user_pref(&quot;clipboard.autocopy&quot;, false);
<BR>   
<BR>   // PREF: Prevent leaking application locale/date format using JavaScript
<BR>   // https://bugzilla.mozilla.org/show_bug.cgi?id=867501
<BR>   // https://hg.mozilla.org/mozilla-central/rev/52d635f2b33d
<BR>   user_pref(&quot;javascript.use_us_english_locale&quot;, true);
<BR>   
<BR>   // PREF: Do not submit invalid URIs entered in the address bar to the default search engine
<BR>   // http://kb.mozillazine.org/Keyword.enabled
<BR>   user_pref(&quot;keyword.enabled&quot;, false);
<BR>   
<BR>   // PREF: Don&#180;t trim HTTP off of URLs in the address bar.
<BR>   // https://bugzilla.mozilla.org/show_bug.cgi?id=665580
<BR>   // Big change for Firefox: Mozilla-Browser eliminates part of the URL (if set to true)
<BR>   // https://www.chip.de/news/Riesen-Aenderung-bei-Firefox-Jetzt-schafft-auch-der-Mozilla-Browser-die-URL-ab_182514886.html
<BR>   user_pref(&quot;browser.urlbar.trimURLs&quot;, false);
<BR>   
<BR>   // PREF: Don&#180;t try to guess domain names when entering an invalid domain name in URL bar
<BR>   // http://www-archive.mozilla.org/docs/end-user/domain-guessing.html
<BR>   user_pref(&quot;browser.fixup.alternate.enabled&quot;, false);
<BR>   
<BR>   // PREF: When browser.fixup.alternate.enabled is enabled, strip password from &#180;user:password&#64;...&#180; URLs
<BR>   // https://github.com/pyllyukko/user.js/issues/290#issuecomment-303560851
<BR>   user_pref(&quot;browser.fixup.hide_user_pass&quot;, true);
<BR>   
<BR>   // PREF: Send DNS request through SOCKS when SOCKS proxying is in use
<BR>   // https://trac.torproject.org/projects/tor/wiki/doc/TorifyHOWTO/WebBrowsers
<BR>   //user_pref(&quot;NETWORK.PROXY.SOCKS_REMOTE_DNS&quot;, false);
<BR>   
<BR>   // PREF: Don&#180;t monitor OS online/offline connection state
<BR>   // https://trac.torproject.org/projects/tor/ticket/18945
<BR>   user_pref(&quot;network.manage-offline-status&quot;, false);
<BR>   
<BR>   // PREF: Enforce Mixed Active Content Blocking
<BR>   // https://support.mozilla.org/t5/Protect-your-privacy/Mixed-content-blocking-in-Firefox/ta-p/10990
<BR>   // https://developer.mozilla.org/en-US/docs/Site_Compatibility_for_Firefox_23#Non-SSL_contents_on_SSL_pages_are_blocked_by_default
<BR>   // https://blog.mozilla.org/tanvi/2013/04/10/mixed-content-blocking-enabled-in-firefox-23/
<BR>   user_pref(&quot;security.mixed_content.block_active_content&quot;, true);
<BR>   
<BR>   // PREF: Enforce Mixed Passive Content blocking (a.k.a. Mixed Display Content)
<BR>   // NOTICE: Enabling Mixed Display Content blocking can prevent images/styles... from loading properly when connection to the website is only partially secured
<BR>   user_pref(&quot;security.mixed_content.block_display_content&quot;, false);
<BR>   
<BR>   // PREF: Disable JAR from opening Unsafe File Types
<BR>   // http://kb.mozillazine.org/Network.jar.open-unsafe-types
<BR>   // CIS Mozilla Firefox 24 ESR v1.0.0 - 3.7
<BR>   user_pref(&quot;network.jar.open-unsafe-types&quot;, false);
<BR>   
<BR>   // CIS 2.7.4 Disable Scripting of Plugins by JavaScript
<BR>   // http://forums.mozillazine.org/viewtopic.php?f=7&t=153889
<BR>   user_pref(&quot;security.xpconnect.plugin.unrestricted&quot;, false);
<BR>   
<BR>   // PREF: Set File URI Origin Policy
<BR>   // http://kb.mozillazine.org/Security.fileuri.strict_origin_policy
<BR>   // CIS Mozilla Firefox 24 ESR v1.0.0 - 3.8
<BR>   user_pref(&quot;security.fileuri.strict_origin_policy&quot;, true);
<BR>   
<BR>   // PREF: Disable Displaying Javascript in History URLs
<BR>   // http://kb.mozillazine.org/Browser.urlbar.filter.javascript
<BR>   // CIS 2.3.6
<BR>   user_pref(&quot;browser.urlbar.filter.javascript&quot;, true);
<BR>   
<BR>   // PREF: Disable asm.js
<BR>   // http://asmjs.org/
<BR>   // https://www.mozilla.org/en-US/security/advisories/mfsa2015-29/
<BR>   // https://www.mozilla.org/en-US/security/advisories/mfsa2015-50/
<BR>   // https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-2712
<BR>   user_pref(&quot;javascript.options.asmjs&quot;, false);
<BR>   
<BR>   // PREF: Disable SVG in OpenType fonts
<BR>   // https://wiki.mozilla.org/SVGOpenTypeFonts
<BR>   // https://github.com/iSECPartners/publications/tree/master/reports/Tor%20Browser%20Bundle
<BR>   user_pref(&quot;gfx.font_rendering.opentype_svg.enabled&quot;, false);
<BR>   
<BR>   // PREF: Disable in-content SVG rendering (Firefox&gt;= 53)
<BR>   // NOTICE: Disabling SVG support breaks many UI elements on many sites
<BR>   // https://bugzilla.mozilla.org/show_bug.cgi?id=1216893
<BR>   // https://github.com/iSECPartners/publications/raw/master/reports/Tor%20Browser%20Bundle/Tor%20Browser%20Bundle%20-%20iSEC%20Deliverable%201.3.pdf#16
<BR>   user_pref(&quot;svg.disabled&quot;, false);
<BR>   
<BR>   
<BR>   // PREF: Disable video stats to reduce fingerprinting threat
<BR>   // https://bugzilla.mozilla.org/show_bug.cgi?id=654550
<BR>   // https://github.com/pyllyukko/user.js/issues/9#issuecomment-100468785
<BR>   // https://github.com/pyllyukko/user.js/issues/9#issuecomment-148922065
<BR>   user_pref(&quot;media.video_stats.enabled&quot;, false);
<BR>   
<BR>   // PREF: Don&#180;t reveal build ID
<BR>   // Value taken from Tor Browser
<BR>   // https://bugzilla.mozilla.org/show_bug.cgi?id=583181
<BR>   user_pref(&quot;general.buildID.override&quot;, &quot;20100101&quot;);
<BR>   user_pref(&quot;browser.startup.homepage_override.buildID&quot;, &quot;20100101&quot;);
<BR>   
<BR>   // PREF: Prevent font fingerprinting
<BR>   // https://browserleaks.com/fonts
<BR>   // https://github.com/pyllyukko/user.js/issues/120
<BR>
<BR> // from https://www.instructables.com/id/Improve-ADSL-Broadband-Performance/
<BR>user_pref(&quot;browser.link.open_newwindow.restriction&quot;, 1);
<BR>user_pref(&quot;webgl.enable-webgl2&quot;, false);
<BR>user_pref(&quot;webgl.disable-wgl&quot;, true);
<BR>user_pref(&quot;browser.sessionhistory.max_entries&quot;, 3);
<BR>user_pref(&quot;media.navigator.video.preferred_codec&quot;, 126);
<BR>user_pref(&quot;media.navigator.video.max_fs&quot;, 2560);
<BR>user_pref(&quot;media.navigator.video.h264.level&quot;, 22); 
<BR>user_pref(&quot;media.navigator.video.h264.max_mbps&quot;, 6000);
<BR>user_pref(&quot;media.ffmpeg.low-latency.enabled&quot;, true);
<BR>// Reduce CPU Utilization
<BR>// this few settings can reduce the cpu utilization and speeding up web contents.
<BR>user_pref(&quot;layout.frame_rate&quot;, 20);
<BR>user_pref(&quot;gfx.direct2d.disabled&quot;, false);
<BR>user_pref(&quot;gfx.direct2d.force-enabled&quot;, true);
<BR>user_pref(&quot;layers.prefer-opengl&quot;, true);
<BR>  // from https://www.privacy-handbuch.de/handbuch_21q.htm
<BR> // Information about installed fonts can be read out by Javascript, flash or Java and further on get used 
<BR> // for individual fingerprinting of the browser.
<BR>
<BR> user_pref(&quot;browser.display.use_document_fonts&quot;, 0);
<BR> user_pref(&quot;font.blacklist.underline_offset&quot;, &quot;&quot;);
<BR> user_pref(&quot;javascript.options.wasm&quot;, false);
<BR> user_pref(&quot;javascript.options.wasm_baselinejit&quot;, false);
<BR>   //
<BR>   // from wiki.kairaven.de:
<BR>  //
<BR> user_pref(&quot;browser.display.use_document_fonts&quot;, 0);
<BR><BR>
<BR> user_pref(&quot;font.blacklist.underline_offset&quot;,&quot;&quot;);
<BR> user_pref(&quot;gfx.downloadable_fonts.enabled&quot;, false);
<BR> user_pref(&quot;gfx.downloadable_fonts.woff2.enabled&quot;, false);
<BR> user_pref(&quot;layout.css.font-loading-api.enabled&quot;, false);
<BR> user_pref(&quot;gfx.downloadable_fonts.disable_cache&quot;, true);
<BR> user_pref(&quot;gfx.font_rendering.graphite.enabled&quot;, false);
<BR> user_pref(&quot;layout.css.prefixes.font-features&quot;, false);
<BR> user_pref(&quot;general.useragent.locale&quot;,&quot;en-US&quot;);
<BR> user_pref(&quot;intl.accept_languages&quot;,&quot;en-US&quot;);
<BR> user_pref(&quot;javascript.use_us_english_locale&quot;, true);
<BR> user_pref(&quot;network.http.accept-encoding&quot;, &quot;gzip, deflate&quot;);
<BR> user_pref(&quot;browser.cache.disk.capacity&quot;, 0);
<BR> user_pref(&quot;browser.cache.disk.enable&quot;, false);
<BR> user_pref(&quot;browser.cache.disk.smart_size.enabled&quot;, false);
<BR> user_pref(&quot;browser.cache.disk_cache_ssl&quot;, false);
<BR> user_pref(&quot;browser.cache.memory.enable&quot;, false);
<BR> user_pref(&quot;browser.cache.offline.capacity&quot;, 0);
<BR> user_pref(&quot;browser.cache.offline.enable&quot;, false);
<BR> user_pref(&quot;devtools.cache.disabled&quot;, true);
<BR> user_pref(&quot;dom.caches.enabled&quot;, false);
<BR> user_pref(&quot;media.cache_size&quot;, 0);
<BR> user_pref(&quot;browser.disk.free_space_hard_limit&quot;, 1);
<BR> user_pref(&quot;browser.disk.free_space_soft_limit&quot;, 1);
<BR> user_pref(&quot;browser.disk.max_chunks_memory_usage&quot;, 1);
<BR> user_pref(&quot;browser.disk.max_entry_size&quot;, 4);
<BR> user_pref(&quot;browser.disk.max_priority_chunks_memory_usage&quot;, 4);
<BR> user_pref(&quot;browser.disk.metadata_memory_limit&quot;, 5);
<BR> user_pref(&quot;browser.disk.parent_directory&quot;, &quot;/tmp&quot;);
<BR> user_pref(&quot;browser.cache.disk.smart_size.firt_run&quot;, false);
<BR> user_pref(&quot;browser.cache.disk.cache_ssl&quot;, false);
<BR> user_pref(&quot;browser.cache.frecency_experiment&quot;, 1);
<BR> user_pref(&quot;browser.cache.memory.max_entery_size&quot;, 0);
<BR> user_pref(&quot;browser.cache.offline.capacity&quot;, 0);
<BR> user_pref(&quot;browser.cache.offline.enable&quot;, false);
<BR> user_pref(&quot;dom.caches.enabled&quot;, false);
<BR> user_pref(&quot;extensions.getAddons.cache.enabled&quot;, false);
<BR> user_pref(&quot;gfx.canvas.skiagl.dynamic-cache&quot;, false);
<BR> user_pref(&quot;gfx.downloadable_fonts.disable_cache&quot;, true);
<BR> user_pref(&quot;image.cache.size&quot;, 0);
<BR> user_pref(&quot;media.cache_size&quot;, 0);
<BR> user_pref(&quot;network.buffer.cache.count&quot;, 4);
<BR> user_pref(&quot;network.buffer.cache.size&quot;, 512);
<BR> user_pref(&quot;offline-apps.allow_by_default&quot;, false);
<BR> user_pref(&quot;signon.formlessCapture.enabled&quot;, false);
<BR> user_pref(&quot;browser.safebrowsing.blockedURIs.enabled&quot;, false);
<BR> user_pref(&quot;brwoser.safebrowsing.provider.mozilla.lists&quot; &quot;&quot;);
<BR> user_pref(&quot;brwoser.safebrowsing.provider.google.lists&quot; &quot;&quot;);
<BR> user_pref(&quot;browser.safebrowsing.downloads.remote.enabled&quot;, false);
<BR> user_pref(&quot;dom.ipc.plugins.enabled&quot;, false);
<BR> user_pref(&quot;dom.ipc.plugins.enabled.pname.dll/so&quot;, false);
<BR> user_pref(&quot;dom.ipc.plugins.timeoutSecs&quot;, -1);
<BR> user_pref(&quot;media.eme.enabled&quot;, false);
<BR> user_pref(&quot;media.gmp-gmpopenh264.abi&quot;,&quot;&quot;);
<BR> user_pref(&quot;media.gmp-gmpopenh264.version&quot;,&quot;&quot;);
<BR> user_pref(&quot;media.gmp.storage.version.observed&quot;, 0);
<BR> user_pref(&quot;media.eme.apiVisible&quot;, false);
<BR> user_pref(&quot;browser.startup.homepage_override.buildID&quot;, 0);
<BR> user_pref(&quot;browser.eme.ui.enabled &quot;, true);
<BR> user_pref(&quot;plugin.default.state&quot;, 0);
<BR> user_pref(&quot;plugin.defaultXpi.state&quot;, 0);
<BR> user_pref(&quot;browser.safebrowsing.downloads.enabled&quot;, false);
<BR> user_pref(&quot;browser.tabs.opentabfor.middleclick&quot;, true);
<BR> user_pref(&quot;browser.search.openintab&quot;, true);
<BR> user_pref(&quot;browser.taskbar.previews.enable&quot;, true);
<BR> user_pref(&quot;config.trim_on_minimize&quot;, true);
<BR>user_pref(&quot;font.default.x-western&quot;, &quot;serif&quot;);
<BR>user_pref(&quot;font.name.serif.x-western&quot;, &quot;serif&quot;);
<BR>user_pref(&quot;font.name.sans-serif.x-western&quot;, &quot;sans-serif&quot;)
<BR>user_pref(&quot;font.name.monospace.x-western&quot;, &quot;serif&quot;)
<BR>user_pref(&quot;font.default.x-western&quot; &quot;sans-serif&quot;);
<BR>user_pref(&quot;font.language.group&quot;, &quot;x-western&quot;);
<BR> user_pref(&quot;middlemouse.paste&quot;, true);
<BR> user_pref(&quot;browser.fixup.alternate.suffix&quot;, &quot;.com&quot;);
<BR> user_pref(&quot;network.cookie.lifetime.days&quot;, 1);
<BR> user_pref(&quot;network.dnsCacheExpiration&quot;, 9);
<BR> user_pref(&quot;browser.send_pings&quot;, false);
<BR> user_pref(&quot;network.dns.disableIPv6&quot;, true);
<BR> user_pref(&quot;network.protocol-handler.expose.ftp&quot;, false);
<BR> user_pref(&quot;network.protocol-handler.external.ftp&quot;, false);
<BR>//
<BR>//firecamp.de
<BR>//
<BR> user_pref(&quot;useragentswitcher.1.appname&quot;, &quot;Microsoft Internet Explorer&quot;);
<BR> user_pref(&quot;useragentswitcher.1.appversion&quot;, &quot;4.0 (compatible; MSIE 6.0; Windows NT 5.1)&quot;);
<BR> user_pref(&quot;useragentswitcher.1.description&quot;, &quot;Internet Explorer 6 (Windows XP)&quot;);
<BR> user_pref(&quot;useragentswitcher.1.platform&quot;, &quot;Win32&quot;);
<BR> user_pref(&quot;useragentswitcher.1.useragent&quot;, &quot;Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)&quot;);
<BR> user_pref(&quot;useragentswitcher.2.appname&quot;, &quot;Netscape&quot;);
<BR> user_pref(&quot;useragentswitcher.2.appversion&quot;, &quot;4.8 [de] (Windows NT 5.1; U)&quot;);
<BR> user_pref(&quot;useragentswitcher.2.description&quot;, &quot;Netscape 4.8 (Windows XP)&quot;);
<BR> user_pref(&quot;useragentswitcher.2.platform&quot;, &quot;Win32&quot;);
<BR> user_pref(&quot;useragentswitcher.2.useragent&quot;, &quot;Mozilla/4.8 [de] (Windows NT 5.1; U)&quot;);
<BR> user_pref(&quot;useragentswitcher.3.appname&quot;, &quot;Opera&quot;);
<BR> user_pref(&quot;useragentswitcher.3.appversion&quot;, &quot;7.54 (Windows NT 5.1; U)&quot;);
<BR> user_pref(&quot;useragentswitcher.3.description&quot;, &quot;Opera 7.54 (Windows XP)&quot;);
<BR> user_pref(&quot;useragentswitcher.3.platform&quot;, &quot;Win32&quot;);
<BR> user_pref(&quot;useragentswitcher.3.useragent&quot;, &quot;Opera/7.54 (Windows NT 5.1; U) [de]&quot;);
<BR> user_pref(&quot;useragentswitcher.menu.hide&quot;, false);
<BR> user_pref(&quot;useragentswitcher.reset.onclose&quot;, false);
<BR> user_pref(&quot;useragentswitcher.user.agents.count&quot;, 3);
<BR> user_pref(&quot;accessibility.typeaheadfind&quot;, false);
<BR> user_pref(&quot;accessibility.typeaheadfind.flashBar&quot;, 0);
<BR> user_pref(&quot;browser.display.screen_resolution&quot;, 96);
<BR> user_pref(&quot;browser.history_expire_days&quot;, 1);
<BR> user_pref(&quot;browser.link.open_external&quot;, 2);
<BR> user_pref(&quot;browser.xul.error_pages.enabled&quot;, false);
<BR> user_pref(&quot;extensions.update.lastUpdateDate&quot;, 1099489430);
<BR> user_pref(&quot;browser.download.dir&quot;, &quot;/tmp2&quot;);
<BR> user_pref(&quot;browser.dom.window.dump.enabled&quot;, false);
<BR> user_pref(&quot;browser.offline&quot;, false);
<BR> user_pref(&quot;browser.preferences.lastpanel&quot;, 5);
<BR> user_pref(&quot;browser.tabs.loadInBackground&quot;, false);
<BR> user_pref(&quot;downloadmgr.showWhenStarting&quot;, true);
<BR> user_pref(&quot;javascript.options.parallel.parsing&quot;, false);
<BR> user_pref(&quot;javascript.options.strict&quot;, true);
<BR> user_pref(&quot;javascript.options.native_regexp&quot;, true);
<BR> user_pref(&quot;javascript.options.mem.gc_per_zone&quot;, true);
<BR> user_pref(&quot;javascript.options.mem.gc_refresh_frame_slices_enabled&quot;, true);
<BR> user_pref(&quot;font.internaluseonly.changed&quot;, false);
<BR> user_pref(&quot;privacy.cpd.formdata&quot;, true); 
<BR> user_pref(&quot;privacy.donottrackheader.enabled&quot;, true);
<BR> user_pref(&quot;privacy.popups.showBrowserMessage&quot;, false);
<BR> user_pref(&quot;privacy.sanitize.migrateFx3Prefs&quot;, true);
<BR> user_pref(&quot;privacy.sanitize.timeSpan&quot;, 0);
<BR> user_pref(&quot;privacy.firstparty.isolate&quot;, true); // ff&gt;=58 once more against Canvas Fingerprinting
<BR> user_pref(&quot;services.sync.declinedEngines&quot;, &quot;&quot;);
<BR> user_pref(&quot;storage.vacuum.last.index&quot;, 1);
<BR> user_pref(&quot;storage.vacuum.last.places.sqlite&quot;, 1509303910);
<BR> user_pref(&quot;network.http.max-connections&quot;, 32);
<BR><BR> user_pref(&quot;browser.cache.disk.parent_directory&quot; &quot;/tmp&quot;); // siehe /etc/fstab
<BR> user_pref(&quot;browser.download.importedFromSqlite&quot;, true); // *
<BR> user_pref(&quot;extensions.checkCompatibility&quot;, false);
<BR> user_pref(&quot;browser.sessionstore.resume_session_once&quot;, false); 
<BR> user_pref(&quot;browser.sessionstore.upgradeBackup.latestBuildID&quot;, &quot;0&quot;); 
<BR> user_pref(&quot;browser.urlbar.matchBehavior&quot;, 2);
<BR> user_pref(&quot;browser.urlbar.matchOnlyTyped&quot;, true);
<BR> user_pref(&quot;browser.urlbar.maxRichResults&quot;, 0);
<BR> user_pref(&quot;gestures.enable_single_finger_input&quot;, false);
<BR>//
<BR>// https://www.philognosie.net/internet/firefox-einstellungen-aboutconfig-praktische-filter-tipps?page=2
<BR>//
<BR> user_pref(&quot;accessibility.typeahead.flashBar&quot;, 0);
<BR> user_pref(&quot;app.releaseNotesURL&quot;, &quot;&quot;);
<BR> user_pref(&quot;app.support.baseURL&quot;, &quot;&quot;);
<BR> user_pref(&quot;app.update.enabled&quot;, false);
<BR> user_pref(&quot;app.update.url&quot;, &quot;&quot;);
<BR> user_pref(&quot;app.update.url.details&quot;, &quot;&quot;);
<BR> user_pref(&quot;app.update.url.manual&quot;, &quot;&quot;);
<BR> user_pref(&quot;app.vendorURL&quot;, &quot;&quot;);
<BR> user_pref(&quot;browser.allTabs.previews&quot;, false);
<BR> user_pref(&quot;browser.autofocus&quot;, false);
<BR> user_pref(&quot;browser.bookmarks.restore_default_bookmarks&quot;, false);
<BR> user_pref(&quot;browser.cache.disk.capacity&quot;, 0);
<BR> user_pref(&quot;browser.cache.disk.filesystem_reported&quot;, 0);
<BR> user_pref(&quot;browser.cache.disk.smart_size.enabled&quot;, false);
<BR> user_pref(&quot;browser.cache.disk.smart_size.first_run&quot;, false);
<BR> user_pref(&quot;browser.cache.disk.smart_size.use_old_max&quot;, false);
<BR> user_pref(&quot;browser.cache.disk_cache_ssl&quot;, false);
<BR> user_pref(&quot;browser.cache.memory.enable&quot;, false);
<BR> user_pref(&quot;browser.cache.offline.capacity&quot;, 0);
<BR> user_pref(&quot;browser.cache.offline.enable&quot;, false);
<BR> user_pref(&quot;browser.contentHandlers.types.0.uri&quot;, &quot;&quot;);
<BR> user_pref(&quot;browser.ctrlTab.previews&quot;, false);
<BR> user_pref(&quot;browser.dictionaries.download.url&quot;, &quot;&quot;);
<BR> user_pref(&quot;browser.display.use_document_fonts&quot;, 0);
<BR> user_pref(&quot;browser.download.dir&quot;, /tmp);
<BR> user_pref(&quot;browser.download.folderList&quot;, 2);
<BR> user_pref(&quot;browser.download.importedFromSqlite&quot;, true);
<BR> user_pref(&quot;browser.download.panel.shown&quot;, true);
<BR> user_pref(&quot;browser.download.useDownloadDir&quot;, true);
<BR> user_pref(&quot;browser.feedback.url&quot;, &quot;&quot;);
<BR> user_pref(&quot;devtools.memory.enabled&quot;, false);
<BR> user_pref(&quot;devtools.errorconsole.enabled&quot;, false);
<BR> user_pref(&quot;devtools.device.url&quot;, &quot;&quot;);
<BR> user_pref(&quot;devtools.browserconsole.filter.sharedworkers&quot;, false);
<BR> user_pref(&quot;clipboard.autocopy&quot;, false);
<BR> user_pref(&quot;captivedetect.canonicalURL&quot;, &quot;&quot;);
<BR> user_pref(&quot;network.http.keep-alive.timeout&quot;, 115);
<BR> user_pref(&quot;network.http.connection-timeout&quot;, 90);
<BR> user_pref(&quot;network.http:connection-retry-timeout&quot;, 250);
<BR> user_pref(&quot;dom.disable_window_open_feature.menubar&quot;, true);
<BR> user_pref(&quot;keyword.enabled&quot;, false);
<BR> user_pref(&quot;browser.urlbar.maxRichResults&quot;, 0);
<BR> user_pref(&quot;browser.urlbar.clickSelectsAll&quot;, false);
<BR> user_pref(&quot;browser.backspace_action&quot;, 2); 
<BR> user_pref(&quot;general.smoothScroll&quot;, true);
<BR> user_pref(&quot;browser.showQuitWarning&quot;, false);
<BR>user_pref(&quot;Browser.download.saveLinkAsFilenameTimeout&quot;, 4000);
<BR>user_pref(&quot;accessibility.typeaheadfind&quot;, true);
<BR>user_pref(&quot;accessibility.typeaheadfind.flashBar&quot;, 0);
<BR>user_pref(&quot;app.releaseNotesURL&quot;, &quot;&quot;);
<BR>user_pref(&quot;app.support.baseURL&quot;, &quot;&quot;);
<BR>user_pref(&quot;app.update.backgroundErrors&quot;, 1);
<BR>user_pref(&quot;app.update.backgroundMaxErrors&quot;, 1);
<BR>user_pref(&quot;app.vendorURL&quot;, &quot;&quot;);
<BR>user_pref(&quot;breakpad.reportURL&quot;, &quot;&quot;);
<BR>user_pref(&quot;browser.allTabs.previews&quot;, false);
<BR>user_pref(&quot;browser.autofocus&quot;, false);
<BR>user_pref(&quot;browser.bookmarks.restore_default_bookmarks&quot;, false);
<BR>user_pref(&quot;browser.cache.disk.filesystem_reported&quot;, 1);
<BR>user_pref(&quot;browser.cache.disk.parent_directory&quot;, &quot;/tmp&quot;);
<BR>user_pref(&quot;browser.cache.disk.smart_size.enabled&quot;, false);
<BR>user_pref(&quot;browser.cache.disk.smart_size.first_run&quot;, false);
<BR>user_pref(&quot;browser.cache.disk.smart_size.use_old_max&quot;, false);
<BR>user_pref(&quot;image.cache.size&quot;, 0);
<BR>user_pref(&quot;browser.contentHandlers.types.0.uri&quot;, &quot;&quot;);
<BR>user_pref(&quot;browser.crashReports.unsubmittedCheck.enabled&quot;, false);
<BR>user_pref(&quot;browser.ctrlTab.previews&quot;, false);
<BR>user_pref(&quot;browser.dictionaries.download.url&quot;, &quot;&quot;);
<BR>user_pref(&quot;browser.display.screen_resolution&quot;, 96);
<BR>user_pref(&quot;browser.download.folderList&quot;, 2);
<BR>user_pref(&quot;browser.download.importedFromSqlite&quot;, true);
<BR>user_pref(&quot;browser.download.panel.shown&quot;, false);
<BR>user_pref(&quot;browser.download.save_converter_index&quot;, 0);
<BR>user_pref(&quot;browser.download.useDownloadDir&quot;, true);
<BR>user_pref(&quot;browser.feedback.url&quot;, &quot;&quot;);
<BR>user_pref(&quot;browser.fixup.alternate.enabled&quot;, false);
<BR>user_pref(&quot;browser.formfill.saveHttpsForms&quot;, false);
<BR>user_pref(&quot;browser.fullscreen.animateUp&quot;, 0);
<BR>user_pref(&quot;browser.fullscreen.autohide&quot;, false);
<BR>user_pref(&quot;browser.geolocation.warning.infoURL&quot;, &quot;&quot;);
<BR>user_pref(&quot;browser.getdevtools.url&quot;, &quot;&quot;);
<BR>user_pref(&quot;browser.history_expire_days&quot;, 1);
<BR>user_pref(&quot;browser.link.open_external&quot;, 2);
<BR>user_pref(&quot;browser.link.open_newwindow&quot;, 1);
<BR>user_pref(&quot;browser.link.open_newwindow.disabled_in_fullscreen&quot;, false);
<BR>user_pref(&quot;browser.link.open_newwindow.restriction&quot;, 0);
<BR>user_pref(&quot;browser.migration.version&quot;, 19);
<BR>user_pref(&quot;browser.mixedcontent.warning.infoURL&quot;, &quot;&quot;);
<BR>user_pref(&quot;browser.newtab.choice&quot;, 0);
<BR>user_pref(&quot;browser.newtab.url&quot;, &quot;about:blank&quot;);
<BR>user_pref(&quot;browser.newtabpage.columns&quot;, 0);
<BR>user_pref(&quot;browser.newtabpage.enabled&quot;, true);
<BR>user_pref(&quot;browser.newtabpage.rows&quot;, 0);
<BR>user_pref(&quot;browser.newtabpage.storageVersion&quot;, 1);
<BR>user_pref(&quot;browser.offline&quot;, false);
<BR>user_pref(&quot;browser.pagethumbnails.storage_version&quot;, 3);
<BR>user_pref(&quot;browser.places.smartBookmarksVersion&quot;, 4);
<BR>user_pref(&quot;browser.preferences.advanced.selectedTabIndex&quot;, 2);
<BR>user_pref(&quot;browser.preferences.lastpanel&quot;, 5);
<BR>user_pref(&quot;browser.preferences.privacy.selectedTabIndex&quot;, 2);
<BR>user_pref(&quot;browser.privatebrowsing.autostart&quot;, true);
<BR>user_pref(&quot;browser.safebrowsing.blockedURIs.enabled&quot;, true);
<BR>user_pref(&quot;browser.safebrowsing.downloads.remote.enabled&quot;, false);
<BR>user_pref(&quot;browser.search.countryCode&quot;, &quot;US&quot;);
<BR>user_pref(&quot;browser.search.geoip.timeout&quot;, 1);
<BR>user_pref(&quot;browser.search.geoip.url&quot;, &quot;&quot;);
<BR>user_pref(&quot;browser.search.order.1&quot;, &quot;&quot;);
<BR>user_pref(&quot;browser.search.region&quot;, &quot;US&quot;);
<BR>user_pref(&quot;browser.search.searchEnginesURL&quot;, &quot;&quot;);
<BR>user_pref(&quot;browser.search.selectedEngine&quot;, &quot;&quot;);
<BR>user_pref(&quot;browser.search.suggest.enabled&quot;, false);
<BR>user_pref(&quot;browser.search.update&quot;, false);
<BR>user_pref(&quot;browser.search.useDBForOrder&quot;, true);
<BR>user_pref(&quot;browser.selfsupport.enabled&quot;, false);
<BR>user_pref(&quot;browser.selfsupport.url&quot;, &quot;&quot;);
<BR>user_pref(&quot;browser.send_pings.max_per_link&quot;, 0);
<BR>user_pref(&quot;browser.sessionhistory.max_entries&quot;, 5);
<BR>user_pref(&quot;browser.sessionhistory.max_total_viewers&quot;, -1);
<BR>user_pref(&quot;browser.sessionstore.privacy level&quot;, 2);
<BR>user_pref(&quot;browser.shell.checkDefaultBrowser&quot;, false);
<BR> user_pref(&quot;browser.shell.skipDefaultBrowserCheckOnFirstRun", true);
<BR>user_pref(&quot;browser.slowStartup.averageTime&quot;, 0);
<BR>user_pref(&quot;browser.slowStartup.maxSamples&quot;, 0);
<BR>user_pref(&quot;browser.slowStartup.notificationDisabled&quot;, true);
<BR>user_pref(&quot;browser.slowStartup.samples&quot;, 0);
<BR>user_pref(&quot;browser.slowstartup.help.url&quot;, &quot;&quot;);
<BR>user_pref(&quot;browser.startup.homepage&quot;, &quot;about::blank&quot;);
<BR>user_pref(&quot;browser.ustartup.homepage_override.mstone&quot;, &quot;ignore&quot;);
<BR>user_pref(&quot;browser.startup.page&quot;, 0);
<BR>user_pref(&quot;browser.syncPromoViewsLeftMap&quot;, &quot;{&quot;addons&quot;:0,&quot;bookmarks&quot;:0}&quot;);
<BR>user_pref(&quot;browser.tabs.closeWindowWithLastTab&quot;, false);
<BR>user_pref(&quot;browser.tabs.crashReporting.sendReport&quot;, false);
<BR>user_pref(&quot;browser.tabs.loadInBackground&quot;, false);
<BR>user_pref(&quot;browser.taskbar.previews.enable&quot;, true);
<BR>user_pref(&quot;browser.trackingprotection.gethashURL&quot;, &quot;&quot;);
<BR>user_pref(&quot;browser.trackingprotection.updateURL&quot;, &quot;&quot;);
<BR>user_pref(&quot;browser.urlbar.clickSelectsAll&quot;, false);
<BR>user_pref(&quot;browser.urlbar.matchBehavior&quot;, 2);
<BR>user_pref(&quot;browser.urlbar.matchOnlyTyped&quot;, true);
<BR>user_pref(&quot;browser.urlbar.maxRichResults&quot;, 0);
<BR>user_pref(&quot;browser.urlbar.suggest.bookmark&quot;, false);
<BR>user_pref(&quot;browser.xul.error_pages.enabled&quot;, false);
<BR>user_pref(&quot;browser.zoom.siteSpecific&quot;, false);
<BR>user_pref(&quot;camera.control.face_detection.enabled&quot;, false);
<BR>user_pref(&quot;clipboard.autocopy&quot;, false);
<BR>user_pref(&quot;config.trim_on_minimize&quot;, true);
<BR>user_pref(&quot;device.sensors.enabled&quot;, false);
<BR>user_pref(&quot;devtools.browserconcole.filter.csslog&quot;, false);
<BR>user_pref(&quot;devtools.devedition.promo.url&quot;, &quot;&quot;);
<BR>user_pref(&quot;devtools.gcli.jquerySrc&quot;, &quot;&quot;);
<BR>user_pref(&quot;devtools.gcli.lodashSrc&quot;, &quot;&quot;);
<BR>user_pref(&quot;devtools.gcli.underscoreSrc&quot;, &quot;&quot;);
<BR>user_pref(&quot;devtools.telemetry.tools.opened.version&quot;, &quot;{}&quot;);
<BR>user_pref(&quot;devtools.toolbox.selectedTool&quot;, &quot;inspector&quot;);
<BR>user_pref(&quot;devtools.toolsidebar-height.inspector&quot;, 350);
<BR>user_pref(&quot;devtools.toolsidebar-width.inspector&quot;, 350);
<BR>user_pref(&quot;devtools.webconsole.filter.csslogbrowserconcole.filter.csslog&quot;, false);
<BR>user_pref(&quot;disabletarget.extensions&quot;, &quot;zip rar exe tar jar xpi gzip gz ace bin&quot;);
<BR>user_pref(&quot;dom.allow_cut_copy&quot;, false);
<BR>user_pref(&quot;dom.disable_window_move_resize&quot;, true);
<BR>user_pref(&quot;dom.disable_window_open_feature.close&quot;, true);
<BR>user_pref(&quot;dom.disable_window_open_feature.menubar&quot;, true);
<BR>user_pref(&quot;dom.disable_window_open_feature.minimizable&quot;, true);
<BR>user_pref(&quot;dom.disable_window_open_feature.personalbar&quot;, true);
<BR>user_pref(&quot;dom.disable_window_open_feature.scrollbars&quot;, true);
<BR>user_pref(&quot;dom.disable_window_open_feature.titlebar&quot;, true);
<BR>user_pref(&quot;dom.disable_window_open_feature.toolbar&quot;, true);
<BR>user_pref(&quot;dom.enable_performance&quot;, false);
<BR>user_pref(&quot;dom.enable_resource_timing&quot;, false);
<BR>user_pref(&quot;dom.enable_user_timing&quot;, false);
<BR>user_pref(&quot;dom.event.contextmenu.enabled&quot;, false);
<BR>user_pref(&quot;dom.gamepad.enabled&quot;, false);
<BR>user_pref(&quot;dom.idle-observers-api.enabled&quot;, false);
<BR>user_pref(&quot;dom.indexedDB.enabled&quot;, false);
<BR>user_pref(&quot;dom.ipc.plugins.enabled.pname.dll/so&quot;, false);
<BR>user_pref(&quot;dom.ipc.plugins.timeoutSecs&quot;, -1);
<BR>user_pref(&quot;dom.keyboardevent.code.enabled&quot;, false);
<BR>user_pref(&quot;dom.maxHardwareConcurrency&quot;, 2);
<BR>user_pref(&quot;dom.mozApps.signed_apps_installable_from&quot;, &quot;&quot;);
<BR>user_pref(&quot;dom.mozInputMethod.enabled&quot;, false);
<BR>user_pref(&quot;dom.mozTCPSocket.enabled&quot;, false);
<BR>user_pref(&quot;dom.network.enabled&quot;, false);
<BR>user_pref(&quot;dom.popup_allowed_events&quot;, &quot;change click dblclick mouseup pointerup notificationclick reset submit touchend&quot;);
<BR>user_pref(&quot;dom.popup_maximum&quot;, 1);
<BR>user_pref(&quot;dom.server-events.enabled&quot;, false);
<BR>user_pref(&quot;dom.storage.enabled&quot;, false);
<BR>user_pref(&quot;dom.vibrator.enabled&quot;, false);
<BR>user_pref(&quot;dom.webaudio.enabled&quot;, false);
<BR>user_pref(&quot;dom.webnotifications.enabled&quot;, false);
<BR>user_pref(&quot;dom.workers.enabled&quot;, false);
<BR>user_pref(&quot;downloadmgr.showWhenStarting&quot;, true);
<BR>user_pref(&quot;experiments.enabled&quot;, false);
<BR>user_pref(&quot;experiments.manifest.uri&quot;, &quot;&quot;);
<BR>user_pref(&quot;experiments.supported&quot;, false);
<BR>user_pref(&quot;network.allow-experiments&quot;, false);
<BR>//
<BR>//https://www.thewindowsclub.com/mozilla-firefox-about-config-tweaks
<BR>//
<BR> user_pref(&quot;browser.tabs.insertRelatedAfterCurrent&quot;, true);
<BR> user_pref(&quot;browser.ctrlTab.previews&quot;, false);
<BR> user_pref(&quot;network.prefetch-next&quot;, false);
<BR> user_pref(&quot;browser.tabs.animate&quot;, true);
<BR> user_pref(&quot;browser.urlbar.clickSelectsAll&quot;, false);
<BR> user_pref(&quot;browser.tabs.animate&quot;, true);
<BR>//
<BR>// https://www.szenebox.org/15-gefaellt-mir/6709-firefox-richtig-einstellen/
<BR>//
<BR> user_pref(&quot;browser.safebrowsing.downloads.enabled&quot;, false);
<BR> user_pref(&quot;datareporting.healthreport.uploadEnabled&quot;, false);
<BR> user_pref(&quot;datareporting.policy.dataSubmissionEnabled&quot;, false);
<BR> user_pref(&quot;falsedatareporting.policy.dataSubmissionEnabled&quot;, false);
<BR> user_pref(&quot;browser.selfsupport.url&quot;, &quot;&quot;);
<BR>//
<BR> user_pref(&quot;services.sync.engine.tabs&quot;, false);
<BR> user_pref(&quot;services.sync.engineStatusChanged.addons&quot;, true);
<BR> user_pref(&quot;services.sync.engineStatusChanged.bookmarks&quot;, true);
<BR> user_pref(&quot;services.sync.engineStatusChanged.history&quot;, true);
<BR> user_pref(&quot;services.sync.engineStatusChanged.passwords&quot;, true);
<BR> user_pref(&quot;services.sync.engineStatusChanged.prefs&quot;, true);
<BR> user_pref(&quot;services.sync.engineStatusChanged.tabs&quot;, true);
<BR> user_pref(&quot;services.sync.fxa.privacyURL&quot;, &quot;&quot;);
<BR> user_pref(&quot;services.sync.fxa.termsURL&quot;, &quot;&quot;);
<BR> user_pref(&quot;services.sync.jpake.serverURL&quot;, &quot;&quot;);
<BR> user_pref(&quot;services.sync.migrated&quot;, true);
<BR> user_pref(&quot;services.sync.nextSync&quot;, 0);
<BR> user_pref(&quot;services.sync.prefs.sync.browser.safebrowsing.malware.enabled&quot;, false);
<BR> user_pref(&quot;services.sync.prefs.sync.browser.safebrowsing.phishing.enabled&quot;, false);
<BR> user_pref(&quot;services.sync.prefs.sync.browser.search.update&quot;, false);
<BR> user_pref(&quot;services.sync.prefs.sync.browser.sessionstore.restore_on_demand&quot;, false);
<BR> user_pref(&quot;services.sync.prefs.sync.browser.urlbar.autocomplete.enabled&quot;, false);
<BR> user_pref(&quot;services.sync.prefs.sync.browser.urlbar.suggest.searches&quot;, false);
<BR> user_pref(&quot;services.sync.prefs.sync.network.cookie.thirdparty.sessionOnly&quot;, false);
<BR> user_pref(&quot;services.sync.prefs.sync.spellchecker.dictionary&quot;, false);
<BR> user_pref(&quot;services.sync.privacyURL&quot;, &quot;&quot;);
<BR> user_pref(&quot;services.sync.serverURL&quot;, &quot;&quot;);
<BR> user_pref(&quot;services.sync.tabs.lastSync&quot;, 0);
<BR> user_pref(&quot;services.sync.tabs.lastSyncLocal&quot;, 0);
<BR> user_pref(&quot;services.sync.addons.trustedSourceHostnames&quot;, &quot;&quot;);
<BR> user_pref(&quot;services.sync.clients.lastSync&quot;, 0);
<BR> user_pref(&quot;services.sync.clients.lastSyncLocal&quot;, 0);
<BR> user_pref(&quot;services.sync.declinedEngines&quot;, &quot;&quot;);
<BR> user_pref(&quot;services.sync.engine.addons&quot;, false);
<BR> user_pref(&quot;services.sync.engine.bookmarks&quot;, false);
<BR> user_pref(&quot;services.sync.engine.history&quot;, false);
<BR> user_pref(&quot;services.sync.engine.passwords&quot;, false);
<BR> user_pref(&quot;services.sync.engine.prefs&quot;, false);
<BR> user_pref(&quot;services.sync.engine.tabs&quot;, false);
<BR>//
<BR>//https://www.maketecheasier.com/28-coolest-firefox-aboutconfig-tricks/
<BR>//
<BR> user_pref(&quot;browser.sessionhistory.max_total_viewers&quot;, 0);
<BR> user_pref(&quot;network.http.max-connections-per-server&quot;, 8);
<BR> user_pref(&quot;network.http.proxy.pipelining&quot;, false); // eventl. true
<BR> user_pref(&quot;browser.urlbar.clickSelectsAll&quot;, false);
<BR> user_pref(&quot;zoom.maxPercent&quot;, 300);
<BR> user_pref(&quot;zoom.minPercent&quot;, 30);
<BR> user_pref(&quot;security.dialog_enable_delay&quot;, 0);
<BR> user_pref(&quot;view_source.editor.external&quot;, false);
<BR> user_pref(&quot;view_source.editor.path&quot;, &quot;&quot;);
<BR> user_pref(&quot;Browser.download.saveLinkAsFilenameTimeout&quot;, 4000);
<BR> user_pref(&quot;browser.fullscreen.autohide&quot;, false);
<BR> user_pref(&quot;extensions.getAddons.maxResults&quot;, 15);
<BR> user_pref(&quot;media.getusermedia.screensharing.allowed_domains&quot;, &quot;&quot;); // www.ciscoparks.com, ... 
<BR>
<BR> CHIP, https://www.chip.de/news/Firefox-Diese-Features-kennen-Sie-noch-nicht_93266205.html
<BR>
<BR> user_pref(&quot;browser.tabs.loadBookmarksInTabs&quot;, true);
<BR> user_pref(&quot;findbar.modalHighlight&quot;, true);
<BR> user_pref(&quot;indbar.highlightAll&quot;, true);
<BR> user_pref(&quot;privacy.resistFingerprinting&quot;, true);
<BR>//
<BR>    // PREF: Enable only whitelisted URL protocol handlers
<BR>   
<BR>   // PREF: Enable only whitelisted URL protocol handlers
<BR>   // http://kb.mozillazine.org/Network.protocol-handler.external-default
<BR>   // http://kb.mozillazine.org/Network.protocol-handler.warn-external-default
<BR>   // http://kb.mozillazine.org/Network.protocol-handler.expose.%28protocol%29
<BR>   // https://news.ycombinator.com/item?id=13047883
<BR>   // https://bugzilla.mozilla.org/show_bug.cgi?id=167475
<BR>   // https://github.com/pyllyukko/user.js/pull/285#issuecomment-298124005
<BR>   // NOTICE: Disabling nonessential protocols breaks all interaction with custom protocols such as mailto:, irc:, magnet: ... and breaks opening third-party mail/messaging/torrent/... clients when clicking on links with these protocols
<BR>   // TODO: Add externally-handled protocols from Windows 8.1 and Windows 10 (currently contains protocols only from Linux and Windows 7) that might pose a similar threat (see e.g. https://news.ycombinator.com/item?id=13044991)
<BR>   // TODO: Add externally-handled protocols from Mac OS X that might pose a similar threat (see e.g. https://news.ycombinator.com/item?id=13044991)
<BR>   // If you want to enable a protocol, set network.protocol-handler.expose.(protocol) to true and network.protocol-handler.external.(protocol) to:
<BR>   // * true, if the protocol should be handled by an external application
<BR>   // * false, if the protocol should be handled internally by Firefox
<BR>   user_pref(&quot;network.protocol-handler.warn-external-default&quot;, true);
<BR>   user_pref(&quot;network.protocol-handler.external.http&quot;, false);
<BR>   user_pref(&quot;network.protocol-handler.external.https&quot;, false);
<BR>   user_pref(&quot;network.protocol-handler.external.javascript&quot;, false);
<BR>   user_pref(&quot;network.protocol-handler.external.moz-extension&quot;, false);
<BR>   user_pref(&quot;network.protocol-handler.external.ftp&quot;, true);
<BR>   user_pref(&quot;network.protocol-handler.external.file&quot;, false);
<BR>   user_pref(&quot;network.protocol-handler.external.about&quot;, false);
<BR>   user_pref(&quot;network.protocol-handler.external.chrome&quot;, false);
<BR>   user_pref(&quot;network.protocol-handler.external.blob&quot;, false);
<BR>   user_pref(&quot;network.protocol-handler.external.data&quot;, false);
<BR>   user_pref(&quot;network.protocol-handler.expose-all&quot;, false);
<BR>   user_pref(&quot;network.protocol-handler.expose.http&quot;, false);
<BR>   user_pref(&quot;network.protocol-handler.expose.https&quot;, false);
<BR>   user_pref(&quot;network.protocol-handler.expose.javascript&quot;, false);
<BR>   user_pref(&quot;network.protocol-handler.expose.moz-extension&quot;, false);
<BR>   user_pref(&quot;network.protocol-handler.expose.ftp&quot;, false);
<BR>   user_pref(&quot;network.protocol-handler.expose.file&quot;, false);
<BR>   user_pref(&quot;network.protocol-handler.expose.about&quot;, false);
<BR>   user_pref(&quot;network.protocol-handler.expose.chrome&quot;, false);
<BR>   user_pref(&quot;network.protocol-handler.expose.blob&quot;, false);
<BR>   user_pref(&quot;network.protocol-handler.expose.data&quot;, false);
<BR>   user_pref(&quot;browser.sessionhistory.max_entries&quot;, 5);
<BR> user_pref(&quot;dom.ipc.plugins.processLaunchTimeoutSecs&quot;, 45);
<BR> user_pref(&quot;network.http.pipelining.ssl&quot;, false);
<BR> user_pref(&quot;network.negotiate-auth.using-native-gsslib&quot;, true);
<BR> user_pref(&quot;network.predictor.enable-hover-on-ssl&quot;, true);
<BR> user_pref(&quot;security.ssl.enable_alpn&quot;, true);
<BR> user_pref(&quot;security.ssl.enable_false_start&quot;, true);
<BR> user_pref(&quot;security.ssl.enable_npn&quot;, true);
<BR> user_pref(&quot;security.ssl.errorReporting.automatic&quot;, false);
<BR> user_pref(&quot;security.ssl.false_start.require-npn&quot;, false);
<BR> user_pref(&quot;security.ssl.require_safe_negotiation&quot;, true); // https://wiki.gentoo.org/wiki/Firefox
<BR> user_pref(&quot;security.ssl.treat_unsafe_negotiation_as_broken&quot;, false); //https://wiki.gentoo.org/wiki/Firefox
<BR> user_pref(&quot;security.ssl.enable_alpn&quot;, true);
<BR> user_pref(&quot;webchannel.allowObject.urlWhitelist&quot; &quot;&quot;);
<BR> user_pref(&quot;clipboard.plainTextOnly&quot;, true); 
<BR> user_pref(&quot;devtools.remote.wifi.scan&quot;, false);
<BR> user_pref(&quot;toolkit.cosmeticAnimations.enabled&quot;, false); 
<BR> user_pref(&quot;dom.battery.enabled&quot;, false);
<BR> user_pref(&quot;dom.disable_window_*&quot;, true);
<BR> user_pref(&quot;dom.event.clipboardevents.enabled&quot;, false);
<BR> user_pref(&quot;dom.gamepad.*.enabled&quot;, false);
<BR> user_pref(&quot;dom.mapped_arraybuffer.enabled&quot;, false);   
<BR> user_pref(&quot;offline-apps.quota.warn&quot;, false);
<BR> user_pref(&quot;dom.w3c_touch_events.enabled&quot;, false);
<BR> user_pref(&quot;dom.webkitBlink.filesystem.enabled&quot;, false);

<BR>   
<BR>   /******************************************************************************
<BR>   * SECTION: Extensions / plugins *
<BR>   ******************************************************************************/
<BR>   
<BR>   // PREF: Ensure you have a security delay when installing add-ons (milliseconds)
<BR>   // http://kb.mozillazine.org/Disable_extension_install_delay_-_Firefox
<BR>   // http://www.squarefree.com/2004/07/01/race-conditions-in-security-dialogs/
<BR>   user_pref(&quot;security.dialog_enable_delay&quot;, 1000);
<BR>   
<BR>   // PREF: Require signatures
<BR>   // https://wiki.mozilla.org/Addons/Extension_Signing; needed for extensions like FireGloves etc.
<BR>   user_pref(&quot;xpinstall.signatures.required&quot;, false);
<BR>   
<BR>   // PREF: Opt-out of add-on metadata updates
<BR>   // https://blog.mozilla.org/addons/how-to-opt-out-of-add-on-metadata-updates/
<BR>   user_pref(&quot;extensions.getAddons.cache.enabled&quot;, false);
<BR>   
<BR>   // PREF: Opt-out of themes (Persona) updates
<BR>   // https://support.mozilla.org/t5/Firefox/how-do-I-prevent-autoamtic-updates-in-a-50-user-environment/td-p/144287
<BR>   user_pref(&quot;lightweightThemes.update.enabled&quot;, false);
<BR>   
<BR>   // PREF: Disable Flash Player NPAPI plugin
<BR>   // http://kb.mozillazine.org/Flash_plugin
<BR>   user_pref(&quot;plugin.state.flash&quot;, 0);
<BR>   
<BR>   // PREF: Disable Java NPAPI plugin
<BR>   user_pref(&quot;plugin.state.java&quot;, 0);
<BR>   
<BR>   // PREF: Disable sending Flash Player crash reports
<BR>   user_pref(&quot;dom.ipc.plugins.flash.subprocess.crashreporter.enabled&quot;, false);
<BR>   
<BR>   // PREF: When Flash crash reports are enabled, don&#180;t send the visited URL in the crash report
<BR>   user_pref(&quot;dom.ipc.plugins.reportCrashURL&quot;, false);
<BR>   
<BR>   // PREF: When Flash is enabled, download and use Mozilla SWF URIs blocklist
<BR>   // https://bugzilla.mozilla.org/show_bug.cgi?id=1237198
<BR>   // https://github.com/mozilla-services/shavar-plugin-blocklist
<BR>   user_pref(&quot;browser.safebrowsing.blockedURIs.enabled&quot;, true);
<BR>   
<BR>   // PREF: Disable Shumway (Mozilla Flash renderer)
<BR>   // https://developer.mozilla.org/en-US/docs/Mozilla/Projects/Shumway
<BR>   user_pref(&quot;shumway.disabled&quot;, true);
<BR>   
<BR>   // PREF: Disable Gnome Shell Integration NPAPI plugin
<BR>   user_pref(&quot;plugin.state.libgnome-shell-browser-plugin&quot;, 0);
<BR>   
<BR>   // PREF: Disable the bundled OpenH264 video codec (disabled)
<BR>   // http://forums.mozillazine.org/viewtopic.php?p=13845077&sid=28af2622e8bd8497b9113851676846b1#p13845077
<BR>   user_pref(&quot;media.gmp-provider.enabled&quot;, false);
<BR>   
<BR>   // PREF: Enable plugins click-to-play
<BR>   // https://wiki.mozilla.org/Firefox/Click_To_Play
<BR>   // https://blog.mozilla.org/security/2012/10/11/click-to-play-plugins-blocklist-style/
<BR>   user_pref(&quot;plugins.click_to_play&quot;, false);
<BR>   
<BR>   // PREF: Updates addons automatically
<BR>   // https://blog.mozilla.org/addons/how-to-turn-off-add-on-updates/
<BR>   user_pref(&quot;extensions.update.enabled&quot;, false);
<BR>   
<BR>   // PREF: Enable add-on and certificate blocklists (OneCRL) from Mozilla
<BR>   // https://wiki.mozilla.org/Blocklisting
<BR>   // https://blocked.cdn.mozilla.net/
<BR>   // http://kb.mozillazine.org/Extensions.blocklist.enabled
<BR>   // http://kb.mozillazine.org/Extensions.blocklist.url
<BR>   // https://blog.mozilla.org/security/2015/03/03/revoking-intermediate-certificates-introducing-onecrl/
<BR>   // Updated at interval defined in extensions.blocklist.interval (default: 86400)
<BR>   user_pref(&quot;extensions.blocklist.enabled&quot;, true);
<BR>   user_pref(&quot;services.blocklist.update_enabled&quot;, true);
<BR>   
<BR>   // PREF: Decrease system information leakage to Mozilla blocklist update servers
<BR>   // https://trac.torproject.org/projects/tor/ticket/16931
<BR>   user_pref(&quot;extensions.blocklist.url&quot;, &quot;https://blocklist.addons.mozilla.org/blocklist/3/%APP_ID%/%APP_VERSION%/&quot;);
<BR>   
<BR>   /******************************************************************************
<BR>   * SECTION: Firefox (anti-)features / components * *
<BR>   ******************************************************************************/
<BR>   
<BR>   // PREF: Disable WebIDE
<BR>   // https://trac.torproject.org/projects/tor/ticket/16222
<BR>   // https://developer.mozilla.org/docs/Tools/WebIDE
<BR>   user_pref(&quot;devtools.webide.enabled&quot;, false);
<BR>   user_pref(&quot;devtools.webide.autoinstallADBHelper&quot;, false);
<BR>   user_pref(&quot;devtools.webide.autoinstallFxdtAdapters&quot;, false);
<BR>   
<BR>   // PREF: Disable remote debugging
<BR>   // https://developer.mozilla.org/en-US/docs/Tools/Remote_Debugging/Debugging_Firefox_Desktop
<BR>   // https://developer.mozilla.org/en-US/docs/Tools/Tools_Toolbox#Advanced_settings
<BR>   user_pref(&quot;devtools.debugger.remote-enabled&quot;, false);
<BR>   user_pref(&quot;devtools.chrome.enabled&quot;, false);
<BR>   user_pref(&quot;devtools.debugger.force-local&quot;, true);
<BR>   
<BR>   // PREF: Disable Mozilla telemetry/experiments
<BR>   // https://wiki.mozilla.org/Platform/Features/Telemetry
<BR>   // https://wiki.mozilla.org/Privacy/Reviews/Telemetry
<BR>   // https://wiki.mozilla.org/Telemetry
<BR>   // https://www.mozilla.org/en-US/legal/privacy/firefox.html#telemetry
<BR>   // https://support.mozilla.org/t5/Firefox-crashes/Mozilla-Crash-Reporter/ta-p/1715
<BR>   // https://wiki.mozilla.org/Security/Reviews/Firefox6/ReviewNotes/telemetry
<BR>   // https://gecko.readthedocs.io/en/latest/browser/experiments/experiments/manifest.html
<BR>   // https://wiki.mozilla.org/Telemetry/Experiments
<BR>   user_pref(&quot;toolkit.telemetry.enabled&quot;, false);
<BR>   user_pref(&quot;toolkit.telemetry.unified&quot;, false);
<BR>   user_pref(&quot;experiments.supported&quot;, false);
<BR>   user_pref(&quot;experiments.enabled&quot;, false);
<BR>   user_pref(&quot;experiments.manifest.uri&quot;, &quot;&quot;);
<BR>   
<BR>   // PREF: Disallow Necko to do A/B testing
<BR>   // https://trac.torproject.org/projects/tor/ticket/13170
<BR>   user_pref(&quot;network.allow-experiments&quot;, false);
<BR>   
<BR>   // PREF: Disable sending Firefox crash reports to Mozilla servers
<BR>   // https://wiki.mozilla.org/Breakpad
<BR>   // http://kb.mozillazine.org/Breakpad
<BR>   // https://dxr.mozilla.org/mozilla-central/source/toolkit/crashreporter
<BR>   // https://bugzilla.mozilla.org/show_bug.cgi?id=411490
<BR>   // A list of submitted crash reports can be found at about:crashes
<BR>   user_pref(&quot;breakpad.reportURL&quot;, &quot;&quot;);
<BR>   
<BR>   // PREF: Disable sending reports of tab crashes to Mozilla (about:tabcrashed), don&#180;t nag user about unsent crash reports
<BR>   // https://hg.mozilla.org/mozilla-central/file/tip/browser/app/profile/firefox.js
<BR>   user_pref(&quot;browser.tabs.crashReporting.sendReport&quot;, false);
<BR>   user_pref(&quot;browser.crashReports.unsubmittedCheck.enabled&quot;, false);
<BR>   
<BR>   // PREF: Disable FlyWeb (discovery of LAN/proximity IoT devices that expose a Web interface)
<BR>   // https://wiki.mozilla.org/FlyWeb
<BR>   // https://wiki.mozilla.org/FlyWeb/Security_scenarios
<BR>   // https://docs.google.com/document/d/1eqLb6cGjDL9XooSYEEo7mE-zKQ-o-AuDTcEyNhfBMBM/edit
<BR>   // http://www.ghacks.net/2016/07/26/firefox-flyweb
<BR>   user_pref(&quot;dom.flyweb.enabled&quot;, false);
<BR>   
<BR>   // PREF: Disable the UITour backend
<BR>   // https://trac.torproject.org/projects/tor/ticket/19047#comment:3
<BR>   user_pref(&quot;browser.uitour.enabled&quot;, false);
<BR>   
<BR>   // PREF: Enable Firefox Tracking Protection
<BR>   // https://wiki.mozilla.org/Security/Tracking_protection
<BR>   // https://support.mozilla.org/en-US/kb/tracking-protection-firefox
<BR>   // https://support.mozilla.org/en-US/kb/tracking-protection-pbm
<BR>   // https://kontaxis.github.io/trackingprotectionfirefox/
<BR>   // https://feeding.cloud.geek.nz/posts/how-tracking-protection-works-in-firefox/
<BR>   user_pref(&quot;privacy.trackingprotection.enabled&quot;, true);
<BR>   user_pref(&quot;privacy.trackingprotection.pbmode.enabled&quot;, true);
<BR>   
<BR>   // PREF: Enable contextual identity Containers feature (Firefox&gt;= 52)
<BR>   // NOTICE: Containers are not available in Private Browsing mode
<BR>   // https://wiki.mozilla.org/Security/Contextual_Identity_Project/Containers
<BR>   user_pref(&quot;privacy.userContext.enabled&quot;, true);
<BR>   
<BR>   // PREF: Enable hardening against various fingerprinting vectors (Tor Uplift project)
<BR>   // https://wiki.mozilla.org/Security/Tor_Uplift/Tracking
<BR>   // https://bugzilla.mozilla.org/show_bug.cgi?id=1333933
<BR>   user_pref(&quot;privacy.resistFingerprinting&quot;, true);
<BR>   
<BR>   // PREF: Disable the built-in PDF viewer
<BR>   // https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-2743
<BR>   // https://blog.mozilla.org/security/2015/08/06/firefox-exploit-found-in-the-wild/
<BR>   // https://www.mozilla.org/en-US/security/advisories/mfsa2015-69/
<BR>   user_pref(&quot;pdfjs.disabled&quot;, true);
<BR>   
<BR>   // PREF: Disable collection/sending of the health report (healthreport.sqlite*)
<BR>   // https://support.mozilla.org/en-US/kb/firefox-health-report-understand-your-browser-perf
<BR>   // https://gecko.readthedocs.org/en/latest/toolkit/components/telemetry/telemetry/preferences.html
<BR>   user_pref(&quot;datareporting.healthreport.uploadEnabled&quot;, false);
<BR>   user_pref(&quot;datareporting.healthreport.service.enabled&quot;, false);
<BR>   user_pref(&quot;datareporting.policy.dataSubmissionEnabled&quot;, false);
<BR>   
<BR>   // PREF: Disable Heartbeat (Mozilla user rating telemetry)
<BR>   // https://wiki.mozilla.org/Advocacy/heartbeat
<BR>   // https://trac.torproject.org/projects/tor/ticket/19047
<BR>   user_pref(&quot;browser.selfsupport.url&quot;, &quot;&quot;);
<BR>   
<BR>   // PREF: Disable Firefox Hello (disabled) (Firefox&lt; 49)
<BR>   // https://wiki.mozilla.org/Loop
<BR>   // https://support.mozilla.org/t5/Chat-and-share/Support-for-Hello-discontinued-in-Firefox-49/ta-p/37946
<BR>   // NOTICE-DISABLED: Firefox Hello requires setting &#180;media.peerconnection.enabled&#180; and &#180;media.getusermedia.screensharing.enabled&#180; to true, &#180;security.OCSP.require&#180; to false to work.
<BR>   user_pref(&quot;loop.enabled&quot;, false);
<BR>   
<BR>   // PREF: Disable Firefox Hello metrics collection
<BR>   // https://groups.google.com/d/topic/mozilla.dev.platform/nyVkCx-_sFw/discussion
<BR>   user_pref(&quot;loop.logDomains&quot;, false);
<BR>   
<BR>   // PREF: Enable Auto Update (disabled)
<BR>   // NOTICE: Fully automatic updates are disabled and left to package management systems on Linux. Windows users may want to change this setting.
<BR>   // CIS 2.1.1
<BR>   user_pref(&quot;app.update.auto&quot;, false);
<BR>   
<BR>   // PREF: Enforce checking for Firefox updates
<BR>   // http://kb.mozillazine.org/App.update.enabled
<BR>   // NOTICE: Update check page might incorrectly report Firefox ESR as out-of-date
<BR>   user_pref(&quot;app.update.enabled&quot;, false);
<BR>   
<BR>   // PREF: Enable blocking reported web forgeries
<BR>   // https://wiki.mozilla.org/Security/Safe_Browsing
<BR>   // http://kb.mozillazine.org/Safe_browsing
<BR>   // https://support.mozilla.org/en-US/kb/how-does-phishing-and-malware-protection-work
<BR>   // http://forums.mozillazine.org/viewtopic.php?f=39&t=2711237&p=12896849#p12896849
<BR>   // CIS 2.3.4
<BR>   user_pref(&quot;browser.safebrowsing.enabled&quot;, false); // Firefox&lt; 50
<BR>   user_pref(&quot;browser.safebrowsing.phishing.enabled&quot;, false); // firefox&gt;= 50
<BR>   
<BR>   // PREF: Enable blocking reported attack sites
<BR>   // http://kb.mozillazine.org/Browser.safebrowsing.malware.enabled
<BR>   // CIS 2.3.5
<BR>   user_pref(&quot;browser.safebrowsing.malware.enabled&quot;, false);
<BR>   
<BR>   // PREF: Disable querying Google Application Reputation database for downloaded binary files
<BR>   // https://www.mozilla.org/en-US/firefox/39.0/releasenotes/
<BR>   // https://wiki.mozilla.org/Security/Application_Reputation
<BR>   user_pref(&quot;browser.safebrowsing.downloads.remote.enabled&quot;, false);
<BR>   
<BR>   // PREF: Disable Pocket
<BR>   // https://support.mozilla.org/en-US/kb/save-web-pages-later-pocket-firefox
<BR>   // https://github.com/pyllyukko/user.js/issues/143
<BR>   user_pref(&quot;browser.pocket.enabled&quot;, false);
<BR>   user_pref(&quot;extensions.pocket.enabled&quot;, false);
<BR>   
<BR>   // PREF: Disable SHIELD
<BR>   // https://support.mozilla.org/en-US/kb/shield
<BR>   // https://bugzilla.mozilla.org/show_bug.cgi?id=1370801
<BR>   user_pref(&quot;extensions.shield-recipe-client.enabled&quot;, false);
<BR>   user_pref(&quot;app.shield.optoutstudies.enabled&quot;, false);
<BR>   
<BR>   // PREF: Disable &quot;Recommended by Pocket&quot; in Firefox Quantum
<BR>   user_pref(&quot;browser.newtabpage.activity-stream.feeds.section.topstories&quot;, false);
<BR>   
<BR>   /******************************************************************************
<BR>   * SECTION: Automatic connections *
<BR>   ******************************************************************************/
<BR>   
<BR>   // PREF: Disable prefetching of&lt;link rel=&quot;next&quot; URLs
<BR>   // http://kb.mozillazine.org/Network.prefetch-next
<BR>   // https://developer.mozilla.org/en-US/docs/Web/HTTP/Link_prefetching_FAQ#Is_there_a_preference_to_disable_link_prefetching.3F
<BR>   user_pref(&quot;network.prefetch-next&quot;, false);
<BR>   
<BR>   // PREF: Disable DNS prefetching
<BR>   // http://kb.mozillazine.org/Network.dns.disablePrefetch
<BR>   // https://developer.mozilla.org/en-US/docs/Web/HTTP/Controlling_DNS_prefetching
<BR>   user_pref(&quot;network.dns.disablePrefetch&quot;, false);
<BR>   user_pref(&quot;network.dns.disablePrefetchFromHTTPS&quot;, false);
<BR>   
<BR>   // PREF: Disable the predictive service (Necko)
<BR>   // https://wiki.mozilla.org/Privacy/Reviews/Necko
<BR>   user_pref(&quot;network.predictor.enabled&quot;, false);
<BR>   
<BR>   // PREF: Reject .onion hostnames before passing the to DNS
<BR>   // https://bugzilla.mozilla.org/show_bug.cgi?id=1228457
<BR>   // RFC 7686
<BR>   user_pref(&quot;network.dns.blockDotOnion&quot;, true);
<BR>   
<BR>   // PREF: Disable search suggestions in the search bar
<BR>   // http://kb.mozillazine.org/Browser.search.suggest.enabled
<BR>   user_pref(&quot;browser.search.suggest.enabled&quot;, false);
<BR>   
<BR>   // PREF: Disable &quot;Show search suggestions in location bar results&quot;
<BR>   user_pref(&quot;browser.urlbar.suggest.searches&quot;, false);
<BR>   // PREF: When using the location bar, don&#180;t suggest URLs from browsing history
<BR>   user_pref(&quot;browser.urlbar.suggest.history&quot;, false);
<BR>   
<BR>   // PREF: Disable SSDP
<BR>   // https://bugzilla.mozilla.org/show_bug.cgi?id=1111967
<BR>   user_pref(&quot;browser.casting.enabled&quot;, false);
<BR>   
<BR>   // PREF: Disable automatic downloading of OpenH264 codec
<BR>   // https://support.mozilla.org/en-US/kb/how-stop-firefox-making-automatic-connections#w_media-capabilities
<BR>   // https://andreasgal.com/2014/10/14/openh264-now-in-firefox/
<BR>   user_pref(&quot;media.gmp-gmpopenh264.enabled&quot;, false);
<BR>   user_pref(&quot;media.gmp-manager.url&quot;, &quot;&quot;);
<BR>   
<BR>   // PREF: Disable speculative pre-connections
<BR>   // https://support.mozilla.org/en-US/kb/how-stop-firefox-making-automatic-connections#w_speculative-pre-connections
<BR>   // https://bugzilla.mozilla.org/show_bug.cgi?id=814169
<BR>   user_pref(&quot;network.http.speculative-parallel-limit&quot;, 0);
<BR>   
<BR>   // PREF: Disable downloading homepage snippets/messages from Mozilla
<BR>   // https://support.mozilla.org/en-US/kb/how-stop-firefox-making-automatic-connections#w_mozilla-content
<BR>   // https://wiki.mozilla.org/Firefox/Projects/Firefox_Start/Snippet_Service
<BR>   user_pref(&quot;browser.aboutHomeSnippets.updateUrl&quot;, &quot;&quot;);
<BR>   
<BR>   // PREF: Never check updates for search engines
<BR>   // https://support.mozilla.org/en-US/kb/how-stop-firefox-making-automatic-connections#w_auto-update-checking
<BR>   user_pref(&quot;browser.search.update&quot;, false);
<BR>   
<BR>   // PREF: Disable automatic captive portal detection (Firefox&gt;= 52.0)
<BR>   // https://support.mozilla.org/en-US/questions/1157121
<BR>   user_pref(&quot;network.captive-portal-service.enabled&quot;, false);
<BR>   
<BR>   /******************************************************************************
<BR>   * SECTION: HTTP *
<BR>   ******************************************************************************/
<BR>   
<BR>   // PREF: Disallow NTLMv1
<BR>   // https://bugzilla.mozilla.org/show_bug.cgi?id=828183
<BR>   user_pref(&quot;network.negotiate-auth.allow-insecure-ntlm-v1&quot;, false);
<BR>   // it is still allowed through HTTPS. uncomment the following to disable it completely.
<BR>   //user_pref(&quot;network.negotiate-auth.allow-insecure-ntlm-v1-https&quot;, false);
<BR>   
<BR>   // PREF: Enable CSP 1.1 script-nonce directive support
<BR>   // https://bugzilla.mozilla.org/show_bug.cgi?id=855326
<BR>   user_pref(&quot;security.csp.experimentalEnabled&quot;, true);
<BR>   
<BR>   // PREF: Enable Content Security Policy (CSP)
<BR>   // https://developer.mozilla.org/en-US/docs/Web/Security/CSP/Introducing_Content_Security_Policy
<BR>   // https://developer.mozilla.org/en-US/docs/Web/HTTP/CSP
<BR>   user_pref(&quot;security.csp.enable&quot;, true);
<BR>   
<BR>   // PREF: Enable Subresource Integrity
<BR>   // https://developer.mozilla.org/en-US/docs/Web/Security/Subresource_Integrity
<BR>   // https://wiki.mozilla.org/Security/Subresource_Integrity
<BR>   user_pref(&quot;security.sri.enable&quot;, true);
<BR>   
<BR>   // PREF: DNT HTTP header (disabled)
<BR>   // https://www.mozilla.org/en-US/firefox/dnt/
<BR>   // https://en.wikipedia.org/wiki/Do_not_track_header
<BR>   // https://dnt-dashboard.mozilla.org
<BR>   // https://github.com/pyllyukko/user.js/issues/11
<BR>   // NOTICE: Do No Track must be enabled manually
<BR>   user_pref(&quot;privacy.donottrackheader.enabled&quot;, true);
<BR>   
<BR>   // PREF: Send a referer header with the target URI as the source
<BR>   // https://bugzilla.mozilla.org/show_bug.cgi?id=822869
<BR>   // https://github.com/pyllyukko/user.js/issues/227
<BR>   // NOTICE: Spoofing referers breaks functionality on websites relying on authentic referer headers
<BR>   // NOTICE: Spoofing referers breaks visualisation of 3rd-party sites on the Lightbeam addon
<BR>   // NOTICE: Spoofing referers disables CSRF protection on some login pages not implementing origin-header/cookie+token based CSRF protection
<BR>   // TODO: https://github.com/pyllyukko/user.js/issues/94, commented-out XOriginPolicy/XOriginTrimmingPolicy = 2 prefs
<BR>   user_pref(&quot;network.http.referer.spoofSource&quot;, true);
<BR>   
<BR>   // PREF: Don&#180;t send referer headers when following links across different domains (disabled)
<BR>   // https://github.com/pyllyukko/user.js/issues/227
<BR>   user_pref(&quot;network.http.referer.XOriginPolicy&quot;, 2);
<BR>   
<BR>   // PREF: Accept Only 1st Party Cookies
<BR>   // http://kb.mozillazine.org/Network.cookie.cookieBehavior#1
<BR>   // NOTICE: Blocking 3rd-party cookies breaks a number of payment gateways
<BR>   // CIS 2.5.1
<BR>   // set 1: cookies from third parties only, 2: no cookies (2 recommended, if extension cookie-controller is installed)
<BR>   user_pref(&quot;network.cookie.cookieBehavior&quot;, 2); 
<BR>   // PREF: Make sure that third-party cookies (if enabled) never persist beyond the session.
<BR>   // https://feeding.cloud.geek.nz/posts/tweaking-cookies-for-privacy-in-firefox/
<BR>   // http://kb.mozillazine.org/Network.cookie.thirdparty.sessionOnly
<BR>   // https://developer.mozilla.org/en-US/docs/Cookies_Preferences_in_Mozilla#network.cookie.thirdparty.sessionOnly
<BR>   // user_pref(&quot;network.cookie.thirdparty.sessionOnly&quot;, false);
<BR>   
<BR>   // PREF: Spoof User-agent (disabled)
<BR>   user_pref(&quot;general.useragent.override&quot;, &quot;Mozilla/5.0 (Windows NT 6.1; rv:45.0) Gecko/20100101 Firefox/45.0&quot;);
<BR>   user_pref(&quot;general.appname.override&quot;, &quot;Netscape&quot;);
<BR>   user_pref(&quot;general.appversion.override&quot;, &quot;5.0 (Windows)&quot;);
<BR>   user_pref(&quot;general.platform.override&quot;, &quot;Win64&quot;);
<BR>   user_pref(&quot;general.oscpu.override&quot;, &quot;Windows NT 6.1&quot;);
<BR>   
<BR>   /*******************************************************************************
<BR>   * SECTION: Caching *
<BR>   ******************************************************************************/
<BR>   
<BR>   // PREF: Permanently enable private browsing mode
<BR>   // https://support.mozilla.org/en-US/kb/Private-Browsing
<BR>   // https://wiki.mozilla.org/PrivateBrowsing
<BR>   // NOTICE: You can not view or inspect cookies when in private browsing: https://bugzilla.mozilla.org/show_bug.cgi?id=823941
<BR>   // NOTICE: When Javascript is enabled, Websites can detect use of Private Browsing mode
<BR>   // NOTICE: Private browsing breaks Kerberos authentication
<BR>   // NOTICE: Disables &quot;Containers&quot; functionality (see below)
<BR>   // NOTICE: &quot;Always use private browsing mode&quot; (browser.privatebrowsing.autostart) disables the possibility to use password manager: https://support.mozilla.org/en-US/kb/usernames-and-passwords-are-not-saved#w_private-browsing
<BR>   user_pref(&quot;browser.privatebrowsing.autostart&quot;, true);
<BR>   
<BR>   // PREF: Do not download URLs for the offline cache
<BR>   // http://kb.mozillazine.org/Browser.cache.offline.enable
<BR>   user_pref(&quot;browser.cache.offline.enable&quot;, false);
<BR>   
<BR>   // PREF: Clear history when Firefox closes
<BR>   // https://support.mozilla.org/en-US/kb/Clear%20Recent%20History#w_how-do-i-make-firefox-clear-my-history-automatically
<BR>   // NOTICE: Installing user.js will remove your browsing history, caches and local storage.
<BR>   // NOTICE: Installing user.js **will remove your saved passwords** (https://github.com/pyllyukko/user.js/issues/27)
<BR>   // NOTICE: Clearing open windows on Firefox exit causes 2 windows to open when Firefox starts https://bugzilla.mozilla.org/show_bug.cgi?id=1334945
<BR>   user_pref(&quot;privacy.sanitize.sanitizeOnShutdown&quot;, true);
<BR>   user_pref(&quot;privacy.clearOnShutdown.cache&quot;, true);
<BR>   user_pref(&quot;privacy.clearOnShutdown.cookies&quot;, true);
<BR>   user_pref(&quot;privacy.clearOnShutdown.downloads&quot;, true);
<BR>   user_pref(&quot;privacy.clearOnShutdown.formdata&quot;, true);
<BR>   user_pref(&quot;privacy.clearOnShutdown.history&quot;, true);
<BR>   user_pref(&quot;privacy.clearOnShutdown.offlineApps&quot;, true);
<BR>   user_pref(&quot;privacy.clearOnShutdown.sessions&quot;, true);
<BR>   user_pref(&quot;privacy.clearOnShutdown.openWindows&quot;, false); // must be set to false, in order to prevent from two loading window instances on startup
<BR>   
<BR>   // PREF: Set time range to &quot;Everything&quot; as default in &quot;Clear Recent History&quot;
<BR>   user_pref(&quot;privacy.sanitize.timeSpan&quot;, 0);
<BR>   
<BR>   // PREF: Clear everything but &quot;Site Preferences&quot; in &quot;Clear Recent History&quot;
<BR>   user_pref(&quot;privacy.cpd.offlineApps&quot;, true);
<BR>   user_pref(&quot;privacy.cpd.cache&quot;, true);
<BR>   user_pref(&quot;privacy.cpd.cookies&quot;, true);
<BR>   user_pref(&quot;privacy.cpd.downloads&quot;, true);
<BR>   user_pref(&quot;privacy.cpd.formdata&quot;, true);
<BR>   user_pref(&quot;privacy.cpd.passwords&quot;, true);
<BR>   user_pref(&quot;privacy.cpd.history&quot;, true);
<BR>   user_pref(&quot;privacy.cpd.sessions&quot;, true);
<BR>   
<BR>   // PREF: Don&#180;t remember browsing history
<BR>   user_pref(&quot;places.history.enabled&quot;, false);
<BR>   
<BR>   // PREF: Disable disk cache
<BR>   // http://kb.mozillazine.org/Browser.cache.disk.enable
<BR>   user_pref(&quot;browser.cache.disk.enable&quot;, false);
<BR>   
<BR>   // PREF: Disable memory cache (disabled)
<BR>   // http://kb.mozillazine.org/Browser.cache.memory.enable
<BR>   user_pref(&quot;browser.cache.memory.enable&quot;, false);
<BR>   
<BR>   // PREF: Disable Caching of SSL Pages
<BR>   // CIS Version 1.2.0 October 21st, 2011 2.5.8
<BR>   // http://kb.mozillazine.org/Browser.cache.disk_cache_ssl
<BR>   user_pref(&quot;browser.cache.disk_cache_ssl&quot;, false);
<BR>   
<BR>   // PREF: Disable download history
<BR>   // CIS Version 1.2.0 October 21st, 2011 2.5.5
<BR>   user_pref(&quot;browser.download.manager.retention&quot;, 0);
<BR>   
<BR>   // PREF: Disable password manager
<BR>   // CIS Version 1.2.0 October 21st, 2011 2.5.2
<BR>   user_pref(&quot;signon.rememberSignons&quot;, false);
<BR>   
<BR>   // PREF: Disable form autofill, don&#180;t save information entered in web page forms and the Search Bar
<BR>   user_pref(&quot;browser.formfill.enable&quot;, false);
<BR>   
<BR>   // PREF: Cookies expires at the end of the session (when the browser closes)
<BR>   // http://kb.mozillazine.org/Network.cookie.lifetimePolicy#2
<BR>   user_pref(&quot;network.cookie.lifetimePolicy&quot;, 2);
<BR>   
<BR>   // PREF: Require manual intervention to autofill known username/passwords sign-in forms
<BR>   // http://kb.mozillazine.org/Signon.autofillForms
<BR>   // https://www.torproject.org/projects/torbrowser/design/#identifier-linkability
<BR>   user_pref(&quot;signon.autofillForms&quot;, false);
<BR>   
<BR>   // PREF: Disable formless login capture
<BR>   // https://bugzilla.mozilla.org/show_bug.cgi?id=1166947
<BR>   user_pref(&quot;signon.formlessCapture.enabled&quot;, false);
<BR>   
<BR>   // PREF: When username/password autofill is enabled, still disable it on non-HTTPS sites
<BR>   // https://hg.mozilla.org/integration/mozilla-inbound/rev/f0d146fe7317
<BR>   user_pref(&quot;signon.autofillForms.http&quot;, false);
<BR>   
<BR>   // PREF: Show in-content login form warning UI for insecure login fields
<BR>   // https://hg.mozilla.org/integration/mozilla-inbound/rev/f0d146fe7317
<BR>   user_pref(&quot;security.insecure_field_warning.contextual.enabled&quot;, true);
<BR>   
<BR>   // PREF: Disable the password manager for pages with autocomplete=off (disabled)
<BR>   // https://bugzilla.mozilla.org/show_bug.cgi?id=956906
<BR>   // OWASP ASVS V9.1
<BR>   // Does not prevent any kind of auto-completion (see browser.formfill.enable, signon.autofillForms)
<BR>   user_pref(&quot;signon.storeWhenAutocompleteOff&quot;, false);
<BR>   
<BR>   // PREF: Delete Search and Form History
<BR>   // CIS Version 1.2.0 October 21st, 2011 2.5.6
<BR>   user_pref(&quot;browser.formfill.expire_days&quot;, 0);
<BR>   
<BR>   // PREF: Clear SSL Form Session Data
<BR>   // http://kb.mozillazine.org/Browser.sessionstore.privacy_level#2
<BR>   // Store extra session data for unencrypted (non-HTTPS) sites only.
<BR>   // CIS Version 1.2.0 October 21st, 2011 2.5.7
<BR>   // NOTE: CIS says 1, we use 2
<BR>   user_pref(&quot;browser.sessionstore.privacy_level&quot;, 2);
<BR>   
<BR>   // PREF: Delete temporary files on exit
<BR>   // https://bugzilla.mozilla.org/show_bug.cgi?id=238789
<BR>   user_pref(&quot;browser.helperApps.deleteTempFileOnExit&quot;, true);
<BR>   
<BR>   // PREF: Do not create screenshots of visited pages (relates to the &quot;new tab page&quot; feature)
<BR>   // https://support.mozilla.org/en-US/questions/973320
<BR>   // https://developer.mozilla.org/en-US/docs/Mozilla/Preferences/Preference_reference/browser.pagethumbnails.capturing_disabled
<BR>   user_pref(&quot;browser.pagethumbnails.capturing_disabled&quot;, true);
<BR>   
<BR>   // PREF: Don&#180;t fetch and permanently store favicons for Windows .URL shortcuts created by drag and drop
<BR>   // NOTICE: .URL shortcut files will be created with a generic icon
<BR>   // Favicons are stored as .ico files in &#36;profile_dirshortcutCache
<BR>   user_pref(&quot;browser.shell.shortcutFavicons&quot;, false);
<BR>   
<BR>   // PREF: Disable bookmarks backups (default: 15)
<BR>   // http://kb.mozillazine.org/Browser.bookmarks.max_backups
<BR>   user_pref(&quot;browser.bookmarks.max_backups&quot;, 0);
<BR>   
<BR>   /*******************************************************************************
<BR>   * SECTION: UI related *
<BR>   *******************************************************************************/
<BR>   
<BR>   // PREF: Enable insecure password warnings (login forms in non-HTTPS pages)
<BR>   // https://blog.mozilla.org/tanvi/2016/01/28/no-more-passwords-over-http-please/
<BR>   // https://bugzilla.mozilla.org/show_bug.cgi?id=1319119
<BR>   // https://bugzilla.mozilla.org/show_bug.cgi?id=1217156
<BR>   user_pref(&quot;security.insecure_password.ui.enabled&quot;, true);
<BR>   
<BR>   // PREF: Disable right-click menu manipulation via JavaScript (disabled)
<BR>   user_pref(&quot;dom.event.contextmenu.enabled&quot;, false);
<BR>   
<BR>   // PREF: Disable &quot;Are you sure you want to leave this page?&quot; popups on page close
<BR>   // https://support.mozilla.org/en-US/questions/1043508
<BR>   // Does not prevent JS leaks of the page close event.
<BR>   // https://developer.mozilla.org/en-US/docs/Web/Events/beforeunload
<BR>   user_pref(&quot;dom.disable_beforeunload&quot;, true);
<BR>   
<BR>   // PREF: Disable Downloading on Desktop
<BR>   // CIS 2.3.2
<BR>   user_pref(&quot;browser.download.folderList&quot;, 2);
<BR>   
<BR>   // PREF: Always ask the user where to download
<BR>   // https://developer.mozilla.org/en/Download_Manager_preferences (obsolete)
<BR>   user_pref(&quot;browser.download.useDownloadDir&quot;, false);
<BR>   
<BR>   // PREF: Disable the &quot;new tab page&quot; feature and show a blank tab instead
<BR>   // https://wiki.mozilla.org/Privacy/Reviews/New_Tab
<BR>   // https://support.mozilla.org/en-US/kb/new-tab-page-show-hide-and-customize-top-sites#w_how-do-i-turn-the-new-tab-page-off
<BR>   user_pref(&quot;browser.newtabpage.enabled&quot;, false);
<BR>   user_pref(&quot;browser.newtab.url&quot;, &quot;about:blank&quot;);
<BR>   
<BR>   // PREF: Disable Activity Stream
<BR>   // https://wiki.mozilla.org/Firefox/Activity_Stream
<BR>   user_pref(&quot;browser.newtabpage.activity-stream.enabled&quot;, false);
<BR>   
<BR>   // PREF: Disable new tab tile ads &amp;preload
<BR>   // http://www.thewindowsclub.com/disable-remove-ad-tiles-from-firefox
<BR>   // http://forums.mozillazine.org/viewtopic.php?p=13876331#p13876331
<BR>   // https://wiki.mozilla.org/Tiles/Technical_Documentation#Ping
<BR>   // https://gecko.readthedocs.org/en/latest/browser/browser/DirectoryLinksProvider.html#browser-newtabpage-directory-source
<BR>   // https://gecko.readthedocs.org/en/latest/browser/browser/DirectoryLinksProvider.html#browser-newtabpage-directory-ping
<BR>   // TODO: deprecated? not in DXR, some dead links
<BR>   user_pref(&quot;browser.newtabpage.enhanced&quot;, false);
<BR>   user_pref(&quot;browser.newtab.preload&quot;, false);
<BR>   user_pref(&quot;browser.newtabpage.directory.ping&quot;, &quot;&quot;);
<BR>   user_pref(&quot;browser.newtabpage.directory.source&quot;, &quot;data:text/plain,{}&quot;);
<BR>   
<BR>   // PREF: Enable Auto Notification of Outdated Plugins (Firefox&lt; 50)
<BR>   // https://wiki.mozilla.org/Firefox3.6/Plugin_Update_Awareness_Security_Review
<BR>   // CIS Version 1.2.0 October 21st, 2011 2.1.2
<BR>   // https://hg.mozilla.org/mozilla-central/rev/304560
<BR>   user_pref(&quot;plugins.update.notifyUser&quot;, false);
<BR>   
<BR>   
<BR>   // PREF: Force Punycode for Internationalized Domain Names
<BR>   // http://kb.mozillazine.org/Network.IDN_show_punycode
<BR>   // https://www.xudongz.com/blog/2017/idn-phishing/
<BR>   // https://wiki.mozilla.org/IDN_Display_Algorithm
<BR>   // https://en.wikipedia.org/wiki/IDN_homograph_attack
<BR>   // https://www.mozilla.org/en-US/security/advisories/mfsa2017-02/
<BR>   // CIS Mozilla Firefox 24 ESR v1.0.0 - 3.6
<BR>   user_pref(&quot;network.IDN_show_punycode&quot;, true);
<BR>   
<BR>   // PREF: Disable inline autocomplete in URL bar
<BR>   // http://kb.mozillazine.org/Inline_autocomplete
<BR>   user_pref(&quot;browser.urlbar.autoFill&quot;, false);
<BR>   user_pref(&quot;browser.urlbar.autoFill.typed&quot;, false);
<BR>   
<BR>   // PREF: Disable CSS :visited selectors
<BR>   // https://blog.mozilla.org/security/2010/03/31/plugging-the-css-history-leak/
<BR>   // https://dbaron.org/mozilla/visited-privacy
<BR>   user_pref(&quot;layout.css.visited_links_enabled&quot;, false);
<BR>   
<BR>   // PREF: Disable URL bar autocomplete and history/bookmarks suggestions dropdown
<BR>   // http://kb.mozillazine.org/Disabling_autocomplete_-_Firefox#Firefox_3.5
<BR>   user_pref(&quot;browser.urlbar.autocomplete.enabled&quot;, false);
<BR>   
<BR>   // PREF: Do not check if Firefox is the default browser
<BR>   user_pref(&quot;browser.shell.checkDefaultBrowser&quot;, false);
<BR>   
<BR>   // PREF: When password manager is enabled, lock the password storage periodically
<BR>   // CIS Version 1.2.0 October 21st, 2011 2.5.3 Disable Prompting for Credential Storage
<BR>   user_pref(&quot;security.ask_for_password&quot;, 2);
<BR>   
<BR>   // PREF: Lock the password storage every 1 minutes (default: 30)
<BR>   user_pref(&quot;security.password_lifetime&quot;, 1);
<BR>   
<BR>   // PREF: Display a notification bar when websites offer data for offline use
<BR>   // http://kb.mozillazine.org/Browser.offline-apps.notify
<BR>   user_pref(&quot;browser.offline-apps.notify&quot;, true);
<BR>   
<BR>   /******************************************************************************
<BR>   * SECTION: Cryptography *
<BR>   ******************************************************************************/
<BR>   
<BR>   // PREF: Enable HSTS preload list (pre-set HSTS sites list provided by Mozilla)
<BR>   // https://blog.mozilla.org/security/2012/11/01/preloading-hsts/
<BR>   // https://wiki.mozilla.org/Privacy/Features/HSTS_Preload_List
<BR>   // https://en.wikipedia.org/wiki/HTTP_Strict_Transport_Security
<BR>   user_pref(&quot;network.stricttransportsecurity.preloadlist&quot;, true);
<BR>   
<BR>   // PREF: Enable Online Certificate Status Protocol
<BR>   // https://en.wikipedia.org/wiki/Online_Certificate_Status_Protocol
<BR>   // https://www.imperialviolet.org/2014/04/19/revchecking.html
<BR>   // https://www.maikel.pro/blog/current-state-certificate-revocation-crls-ocsp/
<BR>   // https://wiki.mozilla.org/CA:RevocationPlan
<BR>   // https://wiki.mozilla.org/CA:ImprovingRevocation
<BR>   // https://wiki.mozilla.org/CA:OCSP-HardFail
<BR>   // https://news.netcraft.com/archives/2014/04/24/certificate-revocation-why-browsers-remain-affected-by-heartbleed.html
<BR>   // https://news.netcraft.com/archives/2013/04/16/certificate-revocation-and-the-performance-of-ocsp.html
<BR>   // NOTICE: OCSP leaks your IP and domains you visit to the CA when OCSP Stapling is not available on visited host
<BR>   // NOTICE: OCSP is vulnerable to replay attacks when nonce is not configured on the OCSP responder
<BR>   // NOTICE: OCSP adds latency (performance)
<BR>   // NOTICE: Short-lived certificates are not checked for revocation (security.pki.cert_short_lifetime_in_days, default:10)
<BR>   // CIS Version 1.2.0 October 21st, 2011 2.2.4
<BR>   user_pref(&quot;security.OCSP.enabled&quot;, true);
<BR>   
<BR>   // PREF: Enable OCSP Stapling support
<BR>   // https://en.wikipedia.org/wiki/OCSP_stapling
<BR>   // https://blog.mozilla.org/security/2013/07/29/ocsp-stapling-in-firefox/
<BR>   // https://www.digitalocean.com/community/tutorials/how-to-configure-ocsp-stapling-on-apache-and-nginx
<BR>   user_pref(&quot;security.ssl.enable_ocsp_stapling&quot;, true);
<BR>   
<BR>   // PREF: Enable OCSP Must-Staple support (Firefox&gt;= 45)
<BR>   // https://blog.mozilla.org/security/2015/11/23/improving-revocation-ocsp-must-staple-and-short-lived-certificates/
<BR>   // https://www.entrust.com/ocsp-must-staple/
<BR>   // https://github.com/schomery/privacy-settings/issues/40
<BR>   // NOTICE: Firefox falls back on plain OCSP when must-staple is not configured on the host certificate
<BR>   user_pref(&quot;security.ssl.enable_ocsp_must_staple&quot;, false);
<BR>   
<BR>   // PREF: Require a valid OCSP response for OCSP enabled certificates
<BR>   // https://groups.google.com/forum/#!topic/mozilla.dev.security/n1G-N2-HTVA
<BR>   // Disabling this will make OCSP bypassable by MitM attacks suppressing OCSP responses
<BR>   // NOTICE: &#180;security.OCSP.require&#180; will make the connection fail when the OCSP responder is unavailable
<BR>   // NOTICE: &#180;security.OCSP.require&#180; is known to break browsing on some [captive portals](https://en.wikipedia.org/wiki/Captive_portal)
<BR>   user_pref(&quot;security.OCSP.require&quot;, false);
<BR>   //
<BR>   // PREF: Disable TLS Session Tickets
<BR>   // https://www.blackhat.com/us-13/briefings.html#NextGen
<BR>   // https://media.blackhat.com/us-13/US-13-Daigniere-TLS-Secrets-Slides.pdf
<BR>   // https://media.blackhat.com/us-13/US-13-Daigniere-TLS-Secrets-WP.pdf
<BR>   // https://bugzilla.mozilla.org/show_bug.cgi?id=917049
<BR>   // https://bugzilla.mozilla.org/show_bug.cgi?id=967977
<BR>   user_pref(&quot;security.ssl.disable_session_identifiers&quot;, false);
<BR>  //
<BR> //Software::Browser
<BR> // Firefox 74 schaltet TLS 1.0 und 1.1 ab
<BR> // Firefox 74 setzt die bereits 2018 beschlossene Abschaltung von TLS 1.0 und 1.1 in die Tat um und ergreift Ma&szlig;nahmen gegen WebRTC-Leaking.
<BR> // https://www.pro-linux.de/news/1/27860/firefox-74-schaltet-tls-10-und-11-ab.html
<BR>   // PREF: Only allow TLS 1.[0-3]
<BR>   // http://kb.mozillazine.org/Security.tls.version.*
<BR>   // 1 = TLS 1.0 is the minimum required / maximum supported encryption protocol. (This is the current default for the maximum supported version.)
<BR>   // 2 = TLS 1.1 is the minimum required / maximum supported encryption protocol.
<BR>   user_pref(&quot;security.tls.version.min&quot;, 3);
<BR>   user_pref(&quot;security.tls.version.max&quot;, 4);
<BR>   // user_pref(&quot;security.tls.version.enable-deprecated&quot;, false);
<BR>  
<BR>   
<BR>   // PREF: Disable insecure TLS version fallback
<BR>   // https://bugzilla.mozilla.org/show_bug.cgi?id=1084025
<BR>   // https://github.com/pyllyukko/user.js/pull/206#issuecomment-280229645
<BR>   user_pref(&quot;security.tls.version.fallback-limit&quot;, 3);
<BR>   
<BR>   // PREF: Enfore Public Key Pinning
<BR>   // https://en.wikipedia.org/wiki/HTTP_Public_Key_Pinning
<BR>   // https://wiki.mozilla.org/SecurityEngineering/Public_Key_Pinning
<BR>   // &quot;2. Strict. Pinning is always enforced.&quot;
<BR>   user_pref(&quot;security.cert_pinning.enforcement_level&quot;, 2);
<BR>   
<BR>   // PREF: Disallow SHA-1
<BR>   // https://bugzilla.mozilla.org/show_bug.cgi?id=1302140
<BR>   // https://shattered.io/
<BR>   user_pref(&quot;security.pki.sha1_enforcement_level&quot;, 1);
<BR>   
<BR>   // PREF: Warn the user when server doesn&#180;t support RFC 5746 (&quot;safe&quot; renegotiation)
<BR>   // https://wiki.mozilla.org/Security:Renegotiation#security.ssl.treat_unsafe_negotiation_as_broken
<BR>   // https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2009-3555
<BR>   user_pref(&quot;security.ssl.treat_unsafe_negotiation_as_broken&quot;, false);
<BR>   
<BR>   // PREF: Disallow connection to servers not supporting safe renegotiation (disabled)
<BR>   // https://wiki.mozilla.org/Security:Renegotiation#security.ssl.require_safe_negotiation
<BR>   // https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2009-3555
<BR>   // TODO: &#180;security.ssl.require_safe_negotiation&#180; is more secure but makes browsing next to impossible (2012-2014-... - &#180;ssl_error_unsafe_negotiation&#180; errors), so is left disabled
<BR>   user_pref(&quot;security.ssl.require_safe_negotiation&quot;, false);
<BR>   
<BR>   // PREF: Disable automatic reporting of TLS connection errors
<BR>   // https://support.mozilla.org/en-US/kb/certificate-pinning-reports
<BR>   // we could also disable security.ssl.errorReporting.enabled, but I think it&#180;s
<BR>   // good to leave the option to report potentially malicious sites if the user
<BR>   // chooses to do so.
<BR>   // you can test this at https://pinningtest.appspot.com/
<BR>   user_pref(&quot;security.ssl.errorReporting.automatic&quot;, false);
<BR>   
<BR>   // PREF: Pre-populate the current URL but do not pre-fetch the certificate in the &quot;Add Security Exception&quot; dialog
<BR>   // http://kb.mozillazine.org/Browser.ssl_override_behavior
<BR>   // https://github.com/pyllyukko/user.js/issues/210
<BR>   user_pref(&quot;browser.ssl_override_behavior&quot;, 1);
<BR>   
<BR>   
<BR>   /******************************************************************************
<BR>   * SECTION: Cipher suites *
<BR>   ******************************************************************************/
<BR>   
<BR>   // PREF: Disable null ciphers
<BR>   user_pref(&quot;security.ssl3.rsa_null_sha&quot;, false);
<BR>   user_pref(&quot;security.ssl3.rsa_null_md5&quot;, false);
<BR>   user_pref(&quot;security.ssl3.ecdhe_rsa_null_sha&quot;, false);
<BR>   user_pref(&quot;security.ssl3.ecdhe_ecdsa_null_sha&quot;, false);
<BR>   user_pref(&quot;security.ssl3.ecdh_rsa_null_sha&quot;, false);
<BR>   user_pref(&quot;security.ssl3.ecdh_ecdsa_null_sha&quot;, false);
<BR>   
<BR>   // PREF: Disable SEED cipher
<BR>   // https://en.wikipedia.org/wiki/SEED
<BR>   user_pref(&quot;security.ssl3.rsa_seed_sha&quot;, false);
<BR>   
<BR>   // PREF: Disable 40/56/128-bit ciphers
<BR>   // 40-bit ciphers
<BR>   user_pref(&quot;security.ssl3.rsa_rc4_40_md5&quot;, false);
<BR>   user_pref(&quot;security.ssl3.rsa_rc2_40_md5&quot;, false);
<BR>   // 56-bit ciphers
<BR>   user_pref(&quot;security.ssl3.rsa_1024_rc4_56_sha&quot;, false);
<BR>   // 128-bit ciphers
<BR>   user_pref(&quot;security.ssl3.rsa_camellia_128_sha&quot;, false);
<BR>   user_pref(&quot;security.ssl3.ecdhe_rsa_aes_128_sha&quot;, false);
<BR>   user_pref(&quot;security.ssl3.ecdhe_ecdsa_aes_128_sha&quot;, false);
<BR>   user_pref(&quot;security.ssl3.ecdh_rsa_aes_128_sha&quot;, false);
<BR>   user_pref(&quot;security.ssl3.ecdh_ecdsa_aes_128_sha&quot;, false);
<BR>   user_pref(&quot;security.ssl3.dhe_rsa_camellia_128_sha&quot;, false);
<BR>   user_pref(&quot;security.ssl3.dhe_rsa_aes_128_sha&quot;, false);
<BR>   
<BR>   // PREF: Disable RC4
<BR>   // https://developer.mozilla.org/en-US/Firefox/Releases/38#Security
<BR>   // https://bugzilla.mozilla.org/show_bug.cgi?id=1138882
<BR>   // https://rc4.io/
<BR>   // https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2013-2566
<BR>   user_pref(&quot;security.ssl3.ecdh_ecdsa_rc4_128_sha&quot;, false);
<BR>   user_pref(&quot;security.ssl3.ecdh_rsa_rc4_128_sha&quot;, false);
<BR>   user_pref(&quot;security.ssl3.ecdhe_ecdsa_rc4_128_sha&quot;, false);
<BR>   user_pref(&quot;security.ssl3.ecdhe_rsa_rc4_128_sha&quot;, false);
<BR>   user_pref(&quot;security.ssl3.rsa_rc4_128_md5&quot;, false);
<BR>   user_pref(&quot;security.ssl3.rsa_rc4_128_sha&quot;, false);
<BR>   user_pref(&quot;security.tls.unrestricted_rc4_fallback&quot;, false);
<BR>   
<BR>   // PREF: Disable 3DES (effective key size is &lt; 128)
<BR>   // https://en.wikipedia.org/wiki/3des#Security
<BR>   // http://en.citizendium.org/wiki/Meet-in-the-middle_attack
<BR>   // http://www-archive.mozilla.org/projects/security/pki/nss/ssl/fips-ssl-ciphersuites.html
<BR>   user_pref(&quot;security.ssl3.dhe_dss_des_ede3_sha&quot;, false);
<BR>   user_pref(&quot;security.ssl3.dhe_rsa_des_ede3_sha&quot;, false);
<BR>   user_pref(&quot;security.ssl3.ecdh_ecdsa_des_ede3_sha&quot;, false);
<BR>   user_pref(&quot;security.ssl3.ecdh_rsa_des_ede3_sha&quot;, false);
<BR>   user_pref(&quot;security.ssl3.ecdhe_ecdsa_des_ede3_sha&quot;, false);
<BR>   user_pref(&quot;security.ssl3.ecdhe_rsa_des_ede3_sha&quot;, false);
<BR>   user_pref(&quot;security.ssl3.rsa_des_ede3_sha&quot;, false);
<BR>   user_pref(&quot;security.ssl3.rsa_fips_des_ede3_sha&quot;, false);
<BR>   
<BR>   // PREF: Disable ciphers with ECDH (non-ephemeral)
<BR>   user_pref(&quot;security.ssl3.ecdh_rsa_aes_256_sha&quot;, false);
<BR>   user_pref(&quot;security.ssl3.ecdh_ecdsa_aes_256_sha&quot;, false);
<BR>   
<BR>   // PREF: Disable 256 bits ciphers without PFS
<BR>   user_pref(&quot;security.ssl3.rsa_camellia_256_sha&quot;, false);
<BR>   
<BR>   // PREF: Enable ciphers with ECDHE and key size&gt; 128bits
<BR>   user_pref(&quot;security.ssl3.ecdhe_rsa_aes_256_sha&quot;, true); // 0xc014
<BR>   user_pref(&quot;security.ssl3.ecdhe_ecdsa_aes_256_sha&quot;, true); // 0xc00a
<BR>   
<BR>   // PREF: Enable GCM ciphers (TLSv1.2 only)
<BR>   // https://en.wikipedia.org/wiki/Galois/Counter_Mode
<BR>   user_pref(&quot;security.ssl3.ecdhe_ecdsa_aes_128_gcm_sha256&quot;, true); // 0xc02b
<BR>   user_pref(&quot;security.ssl3.ecdhe_rsa_aes_128_gcm_sha256&quot;, true); // 0xc02f
<BR>   
<BR>   // PREF: Enable ChaCha20 and Poly1305 (Firefox&gt;= 47)
<BR>   // https://www.mozilla.org/en-US/firefox/47.0/releasenotes/
<BR>   // https://tools.ietf.org/html/rfc7905
<BR>   // https://bugzilla.mozilla.org/show_bug.cgi?id=917571
<BR>   // https://bugzilla.mozilla.org/show_bug.cgi?id=1247860
<BR>   // https://cr.yp.to/chacha.html
<BR>   user_pref(&quot;security.ssl3.ecdhe_ecdsa_chacha20_poly1305_sha256&quot;, true);
<BR>   user_pref(&quot;security.ssl3.ecdhe_rsa_chacha20_poly1305_sha256&quot;, true);
<BR>   
<BR>   // PREF: Disable ciphers susceptible to the logjam attack
<BR>   // https://weakdh.org/
<BR>   user_pref(&quot;security.ssl3.dhe_rsa_camellia_256_sha&quot;, false);
<BR>   user_pref(&quot;security.ssl3.dhe_rsa_aes_256_sha&quot;, false);
<BR>   
<BR>   // PREF: Disable ciphers with DSA (max 1024 bits)
<BR>   user_pref(&quot;security.ssl3.dhe_dss_aes_128_sha&quot;, false);
<BR>   user_pref(&quot;security.ssl3.dhe_dss_aes_256_sha&quot;, false);
<BR>   user_pref(&quot;security.ssl3.dhe_dss_camellia_128_sha&quot;, false);
<BR>   user_pref(&quot;security.ssl3.dhe_dss_camellia_256_sha&quot;, false);
<BR>   
<BR>   // PREF: Fallbacks due compatibility reasons
<BR>   user_pref(&quot;security.ssl3.rsa_aes_256_sha&quot;, true); // 0x35
<BR>   user_pref(&quot;security.ssl3.rsa_aes_128_sha&quot;, true); // 0x2f
<BR>//
<BR>// Firefox-hardening,  https://forum.mxlinux.org/viewtopic.php?t=51318
<BR>//
<BR>user_pref(&quot;app.update.lastUpdateTime.experiments-update-timer&quot;,0);
 <BR>user_pref(&quot;browser.backspace_action&quot;, 0); <BR>
        user_pref(&quot;browser.cache.check_doc_frequency&quot;, 1); <BR>
        user_pref(&quot;browser.cache.frecency_experiment&quot;, -1); <BR>
        user_pref(&quot;browser.cache.use_new_backend_temp&quot;, false); <BR>
        user_pref(&quot;browser.contentHandlers.types.0.title&quot;, &quot;&quot;); <BR>
        user_pref(&quot;browser.safebrowsing.blockedURIs.enabled&quot;, false); <BR>
        user_pref(&quot;browser.safebrowsing.id&quot;, &quot;&quot;); <BR>
        user_pref(&quot;browser.search.countryCode&quot;, &quot;&quot;); <BR>
        user_pref(&quot;browser.search.region&quot;, &quot;&quot;); <BR>
        user_pref(&quot;browser.send_pings&quot;, false); <BR><BR>
        user_pref(&quot;browser.send_pings.require_same_host&quot;, false); <BR>
        user_pref(&quot;layers.acceleration.force-enabled&quot;, true); <BR>
        user_pref(&quot;intl.accept_languages&quot;, &quot;en-US,en;q=0.5&quot;); <BR>
        user_pref(&quot;media.decoder-doctor.notifications-allowed&quot;, &quot;&quot;); <BR>
        user_pref(&quot;extensions.blocklist.enabled&quot;, false); <BR>
        user_pref(&quot;media.peerconnection.identity.enabled&quot;, false); <BR>
        user_pref(&quot;media.peerconnection.identity.timeout&quot;, 1); <BR>
        user_pref(&quot;media.peerconnection.simulcast&quot;, false); <BR>
        user_pref(&quot;media.peerconnection.turn.disable&quot;, true); <BR>
        user_pref(&quot;media.peerconnection.use_document_iceservers&quot;, false); <BR>
        user_pref&quot;media.peerconnection.video.enabled&quot;, false); <BR>
        user_pref(&quot;media.peerconnection.video.vp9_enabled&quot;, false); <BR>
        user_pref(&quot;network.captive-portal-service.enabled&quot;, false); <BR>
        user_pref(&quot;places.frecency.unvisitedBookmarkBonus&quot;, 0); <BR>
        user_pref(&quot;security.ssl.errorReporting.enabled&quot;, false); <BR>
        user_pref(&quot;services.sync.telemetry.submissionInterval&quot;, 999999999); <BR>
        user_pref(&quot;startup.homepage_override_url&quot;, &quot;&quot;); <BR>
        user_pref(&quot;startup.homepage_welcome_url&quot;, &quot;&quot;); <BR>
        user_pref(&quot;urlclassifier.malwareTable&quot;, &quot;&quot;); <BR>
        user_pref(&quot;urlclassifier.phishTable&quot;, &quot;&quot;); <BR>
<BR> //
<BR>  //https://github.com/pyllyukko/user.js#download
<BR>  //
<BR> // end of user.js
<BR> On certificate errros do the following: enter the error causing url into the second field of noscript for https under exceptions, where each http might get blocked by a set * (star) within the first field. If this does not help, formulate error-exceptions with Firefox, by accepting corrputed certificates manually. Enter a remote-host-IP into /etc/resolv.conf: nameserver remote-dns-ip too.
<BR>
<BR> // ======================================================================================
<BR><img src="images/haekchen.png" ALT="OK" align="left" border="0"> // Mozilla User Preferences (prefs.js)
<BR>
<BR> // ======================================================================================
<BR><img src="images/haekchen.png" ALT="OK" align="left" border="0"> // Mozilla User Preferences (prefs.js)
<BR>
<BR> // Pale Moone: /home/surfuser/.moon*/pale*/your-profile-directory/prefs.js
<BR>
<BR># Mozilla User Preferences
<BR>
<BR>/* Do not edit this file.
<BR> *
<BR>* If you make changes to this file while the application is running,
<BR> * the changes will be overwritten when the application exits.
<BR>*
<BR>* To make a manual change to preferences, you can visit the URL about:config
<BR>*/
<BR>
<BR>user_pref(&quot;accessibility.AOM.enabled&quot;, true);
<BR>user_pref(&quot;accessibility.accesskeycausesactivation&quot;, false);
<BR>user_pref(&quot;accessibility.ipc_architecture.enabled&quot;, false);
<BR>user_pref(&quot;accessibility.typeaheadfind.enablesound&quot;, false);
<BR>user_pref(&quot;accessibility.typeaheadfind.flashBar&quot;, 0);
<BR>user_pref(&quot;app.releaseNotesURL&quot;, &quot;&quot;);
<BR>user_pref(&quot;app.support.baseURL&quot;, &quot;&quot;);
<BR>user_pref(&quot;app.update.channel&quot;, &quot;none&quot;);
<BR>user_pref(&quot;app.update.download.backgroundInterval&quot;, 0);
<BR>user_pref(&quot;app.update.enabled&quot;, false);
<BR>user_pref(&quot;app.update.idletime&quot;, -1);
<BR>user_pref(&quot;app.update.interval&quot;, -1);
<BR>user_pref(&quot;app.update.lastUpdateTime.addon-background-update-timer&quot;, 0);
<BR>user_pref(&quot;app.update.lastUpdateTime.background-update-timer&quot;, 0);
<BR>user_pref(&quot;app.update.lastUpdateTime.blocklist-background-update-timer&quot;, 0);
<BR>user_pref(&quot;app.update.lastUpdateTime.browser-cleanup-thumbnails&quot;, 0);
<BR>user_pref(&quot;app.update.lastUpdateTime.search-engine-update-timer&quot;, 1599840640);
<BR>user_pref(&quot;app.update.lastUpdateTime.user-agent-updates-timer&quot;, 1599388459);
<BR>user_pref(&quot;app.update.timerMinimumDelay&quot;, -1);
<BR>user_pref(&quot;app.update.url&quot;, &quot;&quot;);
<BR>user_pref(&quot;app.update.url.details&quot;, &quot;&quot;);
<BR>user_pref(&quot;app.update.url.manual&quot;, &quot;&quot;);
<BR>user_pref(&quot;app.vendorURL&quot;, &quot;&quot;);
<BR>user_pref(&quot;apz.allow_checkerboarding&quot;, false);
<BR>user_pref(&quot;beacon.enabled&quot;, false);
<BR>user_pref(&quot;browser.addon-watch.ignore&quot;, &quot;&quot;);
<BR>user_pref(&quot;browser.allTabs.previews&quot;, false);
<BR>user_pref(&quot;browser.autofocus&quot;, false);
<BR>user_pref(&quot;browser.backspace_action&quot;, 0);
<BR>user_pref(&quot;browser.bookmarks.restore_default_bookmarks&quot;, false);
<BR>user_pref(&quot;browser.cache.check_doc_frequency&quot;, 0);
<BR>user_pref(&quot;browser.cache.disk.capacity&quot;, 0);
<BR>user_pref(&quot;browser.cache.disk.enable&quot;, false);
<BR>user_pref(&quot;browser.cache.disk.filesystem_reported&quot;, 0);
<BR>user_pref(&quot;browser.cache.disk.max_entry_size&quot;, 0);
<BR>user_pref(&quot;browser.cache.disk.smart_size.enabled&quot;, false);
<BR>user_pref(&quot;browser.cache.disk.smart_size.first_run&quot;, false);
<BR>user_pref(&quot;browser.cache.disk.smart_size.use_old_max&quot;, false);
<BR>user_pref(&quot;browser.cache.disk_cache_ssl&quot;, false);
<BR>user_pref(&quot;browser.cache.memory.enable&quot;, false);
<BR>user_pref(&quot;browser.cache.offline.capacity&quot;, 0);
<BR>user_pref(&quot;browser.cache.offline.enable&quot;, false);
<BR>user_pref(&quot;browser.contentHandlers.types.0.title&quot;, &quot;&quot;);
<BR>user_pref(&quot;browser.contentHandlers.types.0.uri&quot;, &quot;&quot;);
<BR>user_pref(&quot;browser.ctrlTab.previews&quot;, false);
<BR>user_pref(&quot;browser.dictionaries.download.url&quot;, &quot;&quot;);
<BR>user_pref(&quot;browser.display.use_document_fonts&quot;, 0);
<BR>user_pref(&quot;browser.download.dir&quot;, &quot;/tmp2&quot;);
<BR>user_pref(&quot;browser.download.folderList&quot;, 2);
<BR>user_pref(&quot;browser.download.forbid_open_with&quot;, true);
<BR>user_pref(&quot;browser.download.importedFromSqlite&quot;, true);
<BR>user_pref(&quot;browser.download.manager.addToRecentDocs&quot;, false);
<BR>user_pref(&quot;browser.download.panel.shown&quot;, true);
<BR>user_pref(&quot;browser.download.useDownloadDir&quot;, true);
<BR>user_pref(&quot;browser.feedback.url&quot;, &quot;&quot;);
<BR>user_pref(&quot;browser.fixup.alternate.enabled&quot;, false);
<BR>user_pref(&quot;browser.fixup.alternate.suffix&quot;, &quot;.de&quot;);
<BR>user_pref(&quot;browser.formfill.enable&quot;, false);
<BR>user_pref(&quot;browser.formfill.expire_days&quot;, 1);
<BR>user_pref(&quot;browser.formfill.saveHttpsForms&quot;, false);
<BR>user_pref(&quot;browser.fullscreen.animateUp&quot;, 0);
<BR>user_pref(&quot;browser.fullscreen.autohide&quot;, false);
<BR>user_pref(&quot;browser.geolocation.warning.infoURL&quot;, &quot;&quot;);
<BR>user_pref(&quot;browser.getdevtools.url&quot;, &quot;&quot;);
<BR>user_pref(&quot;browser.link.open_newwindow&quot;, 1);
<BR>user_pref(&quot;browser.link.open_newwindow.restriction&quot;, 0);
<BR>user_pref(&quot;browser.migration.version&quot;, 24);
<BR>user_pref(&quot;browser.mixedcontent.warning.infoURL&quot;, &quot;&quot;);
<BR>user_pref(&quot;browser.newtabpage.columns&quot;, 0);
<BR>user_pref(&quot;browser.newtabpage.rows&quot;, 0);
<BR>user_pref(&quot;browser.newtabpage.storageVersion&quot;, 1);
<BR>user_pref(&quot;browser.offline-apps.notify&quot;, false);
<BR>user_pref(&quot;browser.pagethumbnails.storage_version&quot;, 3);
<BR>user_pref(&quot;browser.places.smartBookmarksVersion&quot;, 4);
<BR>user_pref(&quot;browser.preferences.advanced.selectedTabIndex&quot;, 1);
<BR>user_pref(&quot;browser.preferences.privacy.selectedTabIndex&quot;, 0);
<BR>user_pref(&quot;browser.privatebrowsing.autostart&quot;, true);
<BR>user_pref(&quot;browser.push.warning.infoURL&quot;, &quot;&quot;);
<BR>user_pref(&quot;browser.search.defaultenginename&quot;, &quot;Wikipedia (en)&quot;);
<BR>user_pref(&quot;browser.search.geoip.timeout&quot;, 1);
<BR>user_pref(&quot;browser.search.geoip.url&quot;, &quot;&quot;);
<BR>user_pref(&quot;browser.search.official&quot;, false);
<BR>user_pref(&quot;browser.search.order.1&quot;, &quot;&quot;);
<BR>user_pref(&quot;browser.search.order.2&quot;, &quot;&quot;);
<BR>user_pref(&quot;browser.search.order.3&quot;, &quot;&quot;);
<BR>user_pref(&quot;browser.search.order.4&quot;, &quot;&quot;);
<BR>user_pref(&quot;browser.search.searchEnginesURL&quot;, &quot;&quot;);
<BR>user_pref(&quot;browser.search.suggest.enabled&quot;, false);
<BR>user_pref(&quot;browser.search.update&quot;, false);
<BR>user_pref(&quot;browser.search.update.interval&quot;, -1);
<BR>user_pref(&quot;browser.send_pings.max_per_link&quot;, 0);
<BR>user_pref(&quot;browser.sessionhistory.max_entries&quot;, 4);
<BR>user_pref(&quot;browser.sessionstore.max_windows_undo&quot;, 2);
<BR>user_pref(&quot;browser.sessionstore.privacy_level&quot;, 2);
<BR>user_pref(&quot;browser.shell.checkDefaultBrowser&quot;, false);
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